Brother vs. Cousin: Know the Difference
By Shumaila Saeed || Updated on December 25, 2023
A brother is a male sibling with the same parents, while a cousin is a relative through one's aunt or uncle, not sharing the same parents.
Key Differences
A brother is a male sibling who shares both parents with another individual. In contrast, a cousin is a relative who is the child of one's aunt or uncle, thus sharing a set of grandparents but not parents.
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Brothers often grow up in the same household, sharing a close familial bond from birth. Cousins, however, are one step removed in the family tree and may or may not share the same household or upbringing.
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The relationship with a brother is typically considered immediate family, often marked by a strong, lifelong bond. A cousin, being an extended family member, might have a less immediate but still significant familial relationship.
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In legal terms, brothers are direct next of kin, with potential implications for inheritance and legal responsibilities. Cousins are considered extended kin, with fewer legal obligations or rights.
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Culturally, the term brother can also be used metaphorically to denote a close male friend or comrade. Cousins, though significant, do not usually extend to such metaphorical uses.
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Comparison Chart
Upbringing
Often share the same household.
May not share the same household.
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Cultural Usage
Can denote a close male friend.
Generally limited to familial context.
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Brother and Cousin Definitions
Brother
A male sibling with the same parents.
My brother and I went to the same school.
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Nov 21, 2023
Cousin
Used to describe a relationship between family members where the common ancestors are grandparents.
Our mothers are sisters, making us cousins.
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Nov 21, 2023
Brother
Used to denote a fellow male member of an organization or group.
The firefighters referred to each other as brothers.
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Cousin
In genealogy, a term describing familial connections beyond immediate siblings.
Our family tree shows how we are related as cousins.
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Nov 21, 2023
Brother
A term of endearment for a close male friend.
He's not just a friend; he's like a brother to me.
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Cousin
A child of one's aunt or uncle.
My cousin is visiting us next weekend.
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Brother
A male having the same parents as another or one parent in common with another.
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Cousin
A term used for distant relatives with varying degrees of removal.
She just discovered that she has a cousin living in Australia.
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Nov 21, 2023
Cousin
Used metaphorically to describe something related or similar.
Jazz and blues are cousins in the music world.
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Brother
A fellow member, as of a fraternity, trade union, or panel of judges on a court.
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Cousin
A relative descended from a common ancestor, such as a grandparent, by two or more steps in a diverging line.
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Brother
Pl. also brethren Something, such as a corporation or institution, that is regarded as a member of a class
“A station that ... relies on corporate contributions or advertising to survive runs the risk of becoming virtually indistinguishable from its commercial brethren” (W. John Moore).
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Cousin
Something similar in quality or character
"There's no mistaking soca for its distant Jamaican cousin, reggae" (Michael Saunders).
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Cousin
Used as a form of address by a sovereign in addressing another sovereign or a high-ranking member of the nobility.
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Cousin
The child of a person's uncle or aunt; a first cousin.
I think my cousin is a good man.
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Brother
A male having at least one parent in common with another (see half-brother, stepbrother).
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Cousin
Any relation who is not a direct ancestor or descendant but part of one's extended family; one more distantly related than an uncle, aunt, granduncle, grandaunt, nephew, niece, grandnephew, grandniece, etc.
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Oct 19, 2023
Brother
A male fellow member of a religious community, church, trades union etc.
Thank you, brother.
I would like to thank the brother who just spoke.
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Cousin
(obsolete) A title formerly given by a king to a nobleman, particularly to those of the council. In English writs, etc., issued by the crown, it signifies any earl.
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Brother
(informal) A form of address to a man.
Listen, brother, I don't know what you want, but I'm not interested.
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Cousin
A member of the British intelligence services (from an American perspective) or of the American intelligence services (from a British perspective).
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Brother
Somebody, usually male, connected by a common cause, situation, or affection.
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Cousin
One collaterally related more remotely than a brother or sister; especially, the son or daughter of an uncle or aunt.
Thou art, great lord, my father's sister's son,A cousin-german to great Priam's seed.
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Cousin
A title formerly given by a king to a nobleman, particularly to those of the council. In English writs, etc., issued by the crown, it signifies any earl.
My noble lords and cousins, all, good morrow.
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Brother
Expressing exasperation.
We're being forced to work overtime? Oh, brother!
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Brother
A male person who has the same father and mother with another person, or who has one of them only. In the latter case he is more definitely called a half brother, or brother of the half blood.
Two of us in the churchyard lie,My sister and my brother.
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Oct 19, 2023
Brother
One related or closely united to another by some common tie or interest, as of rank, profession, membership in a society, toil, suffering, etc.; - used among judges, clergymen, monks, physicians, lawyers, professors of religion, etc.
We few, we happy few, we band of brothers,For he to-day that sheds his blood with meShall be my brother.
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Oct 19, 2023
Brother
One who, or that which, resembles another in distinctive qualities or traits of character.
He also that is slothful in his work is brother to him that is a great waster.
That April mornOf this the very brother.
For of whom such massacreMake they but of their brethren, men of men?
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Oct 19, 2023
Brother
To make a brother of; to call or treat as a brother; to admit to a brotherhood.
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Brother
A male with the same parents as someone else;
My brother still lives with our parents
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Brother
A male person who is a fellow member (of a fraternity or religion of other group);
None of his brothers would betray him
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Brother
Used as a term of address for those male persons engaged in the same movement;
Greetings, comrade!
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Brother
(Roman Catholic Church) a title given to a monk and used as form of address;
A Benedictine Brother
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Brother
A male member of a brotherhood, religious order, or fraternity.
He became a brother in the Franciscan order.
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Nov 21, 2023
Brother
A male person who shares an important common attribute.
We are all brothers in our dedication to this cause.
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Repeatedly Asked Queries
Can brothers have different parents?
Half-brothers can share one parent, but full brothers share both parents.
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Nov 27, 2023
Are cousins considered immediate family?
No, cousins are generally considered extended family.
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How distant can cousin relationships be?
Cousins can be first, second, third, etc., indicating more distant relations.
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Is brotherhood important in religious orders?
Yes, brotherhood is a key concept in many religious orders.
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Do brothers have a legal obligation to each other?
Yes, brothers are direct kin with potential legal responsibilities.
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Is the bond between brothers typically strong?
Yes, brothers often share a close, lifelong bond.
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Are cousins legally next of kin?
Cousins are extended kin with fewer legal ties than immediate family.
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Can the term brother be used metaphorically?
Yes, it can denote a close male friend or comrade.
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Can cousins have the same grandparents?
Yes, cousins share a set of grandparents.
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Can cousins inherit from each other?
Yes, but typically after immediate family members.
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Is a cousin's relationship important in genealogy?
Yes, cousins are important in tracing family trees and connections.
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Do cousins always grow up together?
Not necessarily; cousins may grow up in different households.
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Do cousins have a specific role in families?
Cousins' roles vary by family but are generally less defined than siblings.
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Can brothers be from a blended family?
Yes, stepbrothers are brothers in blended families.
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Can the term brother imply a close relationship?
Yes, it often implies emotional closeness, not just biological relation.
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Can brothers be unrelated biologically?
Yes, in the case of adopted or stepbrothers.
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Are cousins considered when tracing ancestry?
Yes, cousins are significant in understanding family lineage and ancestry.
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Nov 27, 2023
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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