first cousin

English

kinship relations

Noun

first cousin (plural first cousins)

1. A child of a parent's sibling; a nephew or niece of a parent; a child of one's uncle or aunt.
2. A person who shares common grandparents but not common parents.

Usage notes

• Starting with two first cousins (two persons with a common grandparent), the relationship between one of those persons and the offspring of the other is first cousin once removed.
• The relationship between one of those persons and the grandchild of the other is first cousin twice removed.

Synonyms

• cousin
• cousin-german
• full cousin

Derived terms

• double first cousin

Translations

cousin — see cousin

References

• “first cousin”, in OneLook Dictionary Search.