cousin

noun

cous·​in ˈkə-zən 

1

a

: a child of one's uncle or aunt

b

: a relative descended from one's grandparent or more remote ancestor by two or more steps and in a different line

c

: kinsman, relative

a distant cousin

2

: one associated with or related to another : counterpart

Rural children deserve as good an education as their city cousins get.

—Benjamin Fine

3

—used as a title by a sovereign in addressing a nobleman

4

: a member of a group regarded as ethnically or culturally related

our English cousins

cousinhood

ˈkə-zən-ˌhu̇d 

noun

cousinly adjective

cousinship

ˈkə-zən-ˌship 

noun

Synonyms of cousin

• relative
• relation
• family
• kin
• kinsman

Examples of cousin in a Sentence

Everyone came to the wedding, including a distant cousin no one had heard from in years.

The cricket is a cousin of the grasshopper.

hurricanes and their cousins, typhoons

Recent Examples on the Web

However, Heaika expects some things in return and isn’t happy to see Ejva fall for his cousin. — Marta Balaga, Variety, 26 Aug. 2026

The same process occurs in the radish’s spicier cousins, and the resulting chemicals are thought to help deter herbivores and pests. — Encyclopedia Britannica, 26 Aug. 2026

The company plans to phase out the Falcon 9 and its heavy-lift cousin, the Falcon Heavy, after that happens, so the final Falcon 9 Starlink launch from the West Coast may be coming relatively soon as well. — Mike Wall, Space.com, 26 Aug. 2026

One search of a home associated with Davis turned up mail pertaining to the Excalibur Hotel in Las Vegas for Orlando Anderson — Davis’ cousin and fellow Southside Crip was a person of interest in Shakur’s killing, Ladd testified, and was detained. — Richard Winton, Los Angeles Times, 26 Aug. 2026

Word History

Etymology

Middle English cosin, from Anglo-French cusin, cosin, from Latin consobrinus, from com- + sobrinus second cousin, from soror sister — more at sister

First Known Use

14th century, in the meaning defined at sense 1a

Phrases Containing cousin

• cater-cousin
• cousin-german
• first cousin
• kissing cousin
• second cousin

Rhymes for cousin

• dozen

Kids Definition

cousin

noun

cous·​in ˈkəz-ᵊn 

1

a

: a child of one's uncle or aunt

b

: a relative descended from a common ancestor

2

: a member of a group regarded as ethnically or culturally related

our English cousins

Biographical Definition

Cousin

biographical name

Cou·​sin kü-ˈzaⁿ 

Victor 1792–1867 French philosopher