50 Idioms for Brother and Sister (Meanings and Examples)

Idioms are special phrases where the words together have a different meaning than the words do on their own. People use them to make conversation more colorful, expressive, and fun. In this article, you will learn fifty different idioms that are perfect for describing the special bond between brothers and sisters.

In this lesson, we’ll look at idioms that mean family ties and sibling relationships. Let’s get started and explore some of these helpful expressions.

Idioms for Brother and Sister

1. Close as peas in a pod

Definition: Two people who look very similar or are always together and get along great.

Used in a Sentence: My brother and sister are as close as peas in a pod and share all their toys. / The twins act so much alike because they are as close as peas in a pod.

Similar Expressions: Inseparable / Best friends

2. Blood is thicker than water

Definition: Family ties and loyalty are always stronger and more important than other relationships.

Used maw a Sentence: Even though they argue sometimes, my brother and sister know that blood is thicker than water. / When trouble came, she stood by her sister because blood is thicker than water.

Similar Expressions: Family first / Loyal to kin

3. Cut from the same cloth

Definition: Having very similar personalities, habits, or appearances because you are related.

Used in a Sentence: My brother and sister both love building things; they are truly cut from the same cloth. / You can tell they are siblings because their humor is cut from the same cloth.

Similar Expressions: Alike / Very similar

4. Chip off the old block

Definition: A child who looks or acts just like their parents or older siblings.

Used in a Sentence: My younger brother is a chip off the old block when it comes to playing soccer. / Everyone says my sister is a chip off the old block because she loves reading books.

Similar Expressions: Just like family / Similar traits

5. Run in the family

Definition: A specific talent, trait, or look that is shared by family members.

Used in a Sentence: Great storytelling seems to run in the family for my brother and sister. / Tall heights run in the family, so both siblings are very tall.

Similar Expressions: Shared trait / Family habit

6. Two peas in a pod

Definition: Two people who are very similar in behavior or interests.

Used in a Sentence: My brother and sister are like two peas in a pod when they watch cartoon shows. / Those two siblings are two peas in a pod, always laughing together.

Similar Expressions: Matching pair / Very alike

7. Thick and thin

Definition: Remaining loyal and supportive through good times and bad times.

Used in a Sentence: A brother and sister usually stick together through thick and thin. / They supported each other through thick and thin during school exams.

Similar Expressions: Through everything / Always loyal

8. Have each other’s backs

Definition: To protect and support one another in difficult situations.

Used in a Sentence: My brother and sister always have each other’s backs on the playground. / Good siblings know they must have each other’s backs when bullies are around.

Similar Expressions: Protect each other / Support one another

9. Joined at the hip

Definition: Being extremely close and spending almost all your time together.

Used in a Sentence: Ever since they got their new bicycles, the brother and sister have been joined at the hip. / You rarely see one without the other because they are joined at the hip.

Similar Expressions: Inseparable / Always together

10. Bird of a feather

Definition: People who have similar characters or interests, often used for siblings.

Used in a Sentence: My brother and sister are birds of a feather when it comes to painting. / Those two siblings are birds of a feather, always getting into creative mischief.

Similar Expressions: Similar souls / Like-minded

11. Ride or die

Definition: A loyal companion or sibling who will support you no matter what.

Used in a Sentence: My sister is my ride or die whenever I need help with homework. / Brothers can be your ride or die partners in video games.

Similar Expressions: Ultimate supporter / Loyal friend

12. Hand in glove

Definition: Working together very closely and cooperatively.

Used in a Sentence: My brother and sister worked hand in glove to clean up the living room. / The siblings operate hand in glove when planning a surprise party.

Similar Expressions: Working together / Cooperating closely

13. Like brother and sister

Definition: Two friends who care for each other as deeply as real siblings.

Used in a Sentence: Even though they are neighbors, they treat each other like brother and sister. / The two teammates care for one another like brother and sister.

Similar Expressions: Deeply bonded / Family-like

14. Keep in the family

Definition: To share secrets, items, or traditions only among family members.

Used in a Sentence: They decided to keep the secret recipe in the family. / Passing down the vintage bicycle was a way to keep it in the family.

Similar Expressions: Share within kin / Stay in the household

15. Family skeleton

Definition: A shameful family secret that siblings might keep hidden.

Used in a Sentence: Every family has a funny story or minor skeleton they laugh about. / They promised not to share their silly childhood secrets outside the family.

Similar Expressions: Family secret / Hidden story

16. Black sheep of the family

Definition: A sibling who is different from everyone else in the group.

Used in a Sentence: While everyone else loved sports, he was the artistic black sheep of the family. / She joked about being the black sheep of the family because she hated math.

Similar Expressions: Different one / Odd one out

17. Apple of my eye

Definition: Someone who is cherished above all others, often used by parents for their children.

Used in a Sentence: Both brother and sister were the apple of their grandmother’s eye. / The youngest child is often the apple of the family’s eye.

Similar Expressions: Most cherished / Favorite person

18. Flesh and blood

Definition: Your close relatives or family members.

Used in a Sentence: You must always help your own flesh and blood in an emergency. / My brother is my own flesh and blood, so I share my snacks with him.

Similar Expressions: Relative / Kin

19. Born of the same parents

Definition: Sharing the exact same mother and father.

Used in a Sentence: They are not just friends; they were born of the same parents and look alike. / Being born of the same parents gives them a lifelong connection.

Similar Expressions: Full siblings / Biological brothers and sisters

20. Kissing cousins

Definition: Relatives who are distantly related and friendly with each other.

Used in a Sentence: They act like kissing cousins because their families spend every holiday together. / Our families are so close we are practically kissing cousins.

Similar Expressions: Close relatives / Extended family

21. Family tree

Definition: A drawing showing the relationships between people in a family over generations.

Used in a Sentence: We drew our family tree for a school project to show our brothers and sisters. / Tracing our ancestors helped us understand our family tree.

Similar Expressions: Genealogy / Family history

22. Branch out

Definition: To develop different interests while still belonging to the same family.

Used in a Sentence: My sister loves painting, and I love sports; we really branched out. / Even though they branched out into different careers, they remain close siblings.

Similar Expressions: Explore new paths / Grow apart in interests

23. Run in the blood

Definition: A natural quality or trait passed down through generations.

Used in a Sentence: Musical talent seems to run in the blood of those siblings. / Kindness runs in the blood of our entire family.

Similar Expressions: Inherited trait / In the genes

24. Look out for one another

Definition: To care for and protect your brothers and sisters.

Used in a Sentence: Older siblings should always look out for one another on the walk to school. / It is important for brothers and sisters to look out for one another.

Similar Expressions: Care for / Protect

25. Share a roof

Definition: Living together in the same house as a family.

Used in a Sentence: Four brothers and sisters shared a roof and a lot of laughter. / Growing up sharing a roof makes siblings very close.

Similar Expressions: Live together / Share a home

26. Lock horns

Definition: To get into a stubborn argument or fight, common among siblings.

Used in a Sentence: My brother and sister often lock horns over who gets to watch their favorite TV show. / Even when they lock horns, they make up quickly.

Similar Expressions: Argue / Fight

27. Rub each other the wrong way

Definition: To irritate or annoy your sibling with small habits.

Used in a Sentence: Living together means brother and sister sometimes rub each other the wrong way. / Their different personalities could rub each other the wrong way on long car trips.

Similar Expressions: Annoy / Irritate

28. Cat and dog life

Definition: A relationship where siblings constantly argue and fight like cats and dogs.

Used in a Sentence: When they were little, the brother and sister lived a cat and dog life. / They fought like a cat and dog, but they loved each other deeply.

Similar Expressions: Constant arguing / Bickering

29. Bury the hatchet

Definition: To stop fighting and make peace with your brother or sister.

Used in a Sentence: After arguing over the toy, they decided to bury the hatchet and play together. / Siblings must learn to bury the hatchet after a disagreement.

Similar Expressions: Make peace / Stop fighting

30. Clear the air

Definition: To talk about an argument so everyone feels better and gets along again.

Used in a Sentence: The brother and sister had a good chat to clear the air after their fight. / Clearing the air helps siblings stay close friends.

Similar Expressions: Talk it out / Resolve issues

31. Thick as thieves

Definition: Being extremely close friends who share secrets and adventures.

Used in a Sentence: My brother and sister are thick as thieves when plotting a surprise party. / The young siblings were as thick as thieves all summer long.

Similar Expressions: Very close / Inseparable

32. Share the load

Definition: To divide chores or responsibilities equally between siblings.

Used in a Sentence: The brother and sister agreed to share the load of washing the dishes. / Sharing the load makes household chores much easier.

Similar Expressions: Divide work / Help out

33. Pull your weight

Definition: To do your fair share of work around the house or on a family project.

Used in a Sentence: Mom told the brother and sister to pull their weight when cleaning the garage. / If everyone pulls their weight, dinner prep goes much faster.

Similar Expressions: Do your share / Help equally

34. Pitch in

Definition: To join in and help your family members with a task.

Used in a Sentence: The brother and sister pitched in to bake cookies for the bake sale. / Everyone pitched in to help move the heavy boxes.

Similar Expressions: Help out / Contribute

35. Lend a helping hand

Definition: To assist your brother or sister when they are struggling.

Used in a Sentence: My sister always lends a helping hand when my math homework gets hard. / Brothers should lend a helping hand when carrying heavy grocery bags.

Similar Expressions: Assist / Help

36. Stand side by side

Definition: To support each other loyally during challenges.

Used in a Sentence: The brother and sister stood side by side during the school spelling bee. / Facing new challenges is easier when siblings stand side by side.

Similar Expressions: Support each other / Stand together

37. Back to back

Definition: Supporting one another loyally against any trouble.

Used in a Sentence: The siblings worked back to back to finish their science project on time. / Standing back to back helps brothers and sisters feel brave.

Similar Expressions: Mutual support / United front

38. Keep secrets in the vault

Definition: To keep confidential family stories between brothers and sisters.

Used in a Sentence: What happens between siblings stays in the vault. / They promised to keep their funny childhood memories in the vault.

Similar Expressions: Keep secrets / Trust each other

39. Share a bond

Definition: To have a special connection that lasts a lifetime.

Used in a Sentence: Brothers and sisters share a bond that grows stronger as they get older. / That special trip created a lifelong bond between the siblings.

Similar Expressions: Connected / Close relationship

40. Cut from the same mold

Definition: Having identical habits, traits, or looks because you share family roots.

Used in a Sentence: Both sister and brother love reading poetry; they are cut from the same mold. / You can tell they are siblings because their laughter is cut from the same mold.

Similar Expressions: Very similar / Identical traits

41. Run in the family blood

Definition: A trait or characteristic inherited from parents and shared by siblings.

Used in a Sentence: Athletic ability runs in the family blood for those two brothers. / Being kind to animals runs in the family blood of our siblings.

Similar Expressions: Family trait / Inherited quality

42. Born days apart

Definition: Being close in age as siblings, often growing up together like twins.

Used in a Sentence: Even though they were born years apart, the brother and sister acted like best friends. / Being born close in age made the siblings share all their toys.

Similar Expressions: Close in age / Childhood companions

43. Mirror image

Definition: Looking or acting exactly like your brother or sister.

Used in a Sentence: My little brother is a mirror image of our dad when he smiles. / The sisters look like a mirror image of each other in their matching dresses.

Similar Expressions: Exact match / Looking alike

44. Spit and image

Definition: Looking amazingly like another family member.

Used in a Sentence: She is the spit and image of her older sister when she wears glasses. / The young boy was the spit and image of his uncle.

Similar Expressions: Exact likeness / Double

45. Chip off the old family tree

Definition: A sibling who shares the exact personality of their older relatives.

Used in a Sentence: My sister is a true chip off the old family tree with her love for gardening. / He is a chip off the old family tree because he loves fixing bikes.

Similar Expressions: Family likeness / Similar character

46. Family first

Definition: The rule that your brothers, sisters, and parents are always the top priority.

Used in a Sentence: In our household, we always remember that family first is the most important rule. / He rushed home to help his sister because family comes first.

Similar Expressions: Prioritize family / Kin before all

47. Stick together like glue

Definition: To remain extremely close and loyal to your siblings.

Used in a Sentence: The brother and sister stuck together like glue on their first day at a new school. / Siblings often stick together like glue when meeting new people.

Similar Expressions: Inseparable / Stay close

48. Share the spotlight

Definition: To let your brother or sister share in the praise and celebration.

Used in a Sentence: When they both won art ribbons, the brother happily shared the spotlight with his sister. / Good siblings know how to share the spotlight.

Similar Expressions: Share praise / Celebrate together

49. Walk hand in hand

Definition: To support and guide each other through life’s journey as siblings.

Used in a Sentence: The brother and sister walked hand in hand through the museum exhibit. / Growing up, they walked hand in hand through every challenge.

Similar Expressions: Support each other / Walk together

50. Family ties

Definition: The strong emotional bonds connecting brothers, sisters, and relatives.

Used in a Sentence: Strong family ties keep brothers and sisters connected even when they grow up. / No matter where they move, their family ties remain unbreakable.

Similar Expressions: Family bond / Kinship

Exercise to Practice

1. My brother and sister are as close as peas in a pod and share all their toys.
2. Even though they argue sometimes, my brother and sister know that water is thicker than blood.
3. My brother and sister both love building things; they are truly cut from the same cloth.
4. My younger brother is a chip off the old block when it comes to playing soccer.
5. Great storytelling seems to run in the family for my brother and sister.
6. My brother and sister are like two peas in a pod when they watch cartoon shows.
7. A brother and sister usually fight and never support each other through thick and thin.
8. My brother and sister always have each other’s backs on the playground.
9. Ever since they got their new bicycles, the brother and sister have been joined at the hip.
10. My brother and sister are birds of a feather when it comes to painting.
11. My sister is my ride or die whenever I need help with homework.
12. My brother and sister worked hand in glove to clean up the living room.
13. Even though they are neighbors, they treat each other like brother and sister.
14. They decided to share the secret recipe with everyone outside the family.
15. Every family has a funny story or minor skeleton they laugh about.

Answer Key

1. True
2. False
3. True
4. True
5. True
6. True
7. False
8. True
9. True
10. True
11. True
12. True
13. True
14. False
15. True

Conclusion

Learning these idioms helps you describe the special relationship between brothers and sisters in a fun and colorful way. Instead of using plain words, you can use unique phrases to talk about family bonds and sibling loyalty.

Try using one or two of these expressions when telling a story or discussing your family with friends. You will find that sharing your thoughts with creative language makes talking about brothers and sisters much more meaningful.

Frequently Asked Questions

What are some common idioms for brother and sister?

Some common idioms for brothers and sisters include close as peas in a pod, blood is thicker than water, and having each other’s backs. These expressions help describe strong family bonds.

Why do we use idioms in English?

Idioms make our language more colorful, fun, and expressive than using plain words. They let us share feelings and situations in a creative way.

How can I practice using idioms?

You can practice by using one new idiom each day in a sentence when talking to your friends or family. Writing short stories or doing practice exercises also helps you remember them.

Are idioms meant to be taken literally?

No, idioms should not be taken literally because their combined meaning is different from the individual words. For example, being joined at the hip does not mean a medical connection.

Can idioms help me express family relationships better?

Yes, idioms give you fun and creative ways to explain how siblings support, care for, and sometimes argue with each other.