Synonyms for Cousin:

n.

association, reconciliation, chemistry, rapport, tie, relationship, connection, partnership, link, relations. auntie, maiden aunt. blood relative (noun)
kin.
cousin (noun)
cousin-german, full cousin, first cousin.
family relation (noun)
kin, relative, kinswoman, Coz, kinsman.
friend (noun)
roommate, brother, ally, amigo, Familiar, acquaintance, fellow, buddy, friend, intimate, playmate, classmate, mate, schoolmate, pal, crony, partner, companion, confidant, comrade, company, teammate, sister, colleague, chum, co-worker.
kin (noun)
second cousin, cousin twice removed, kinsman, Coz, distant cousin, kinswoman, cousin once removed.
kinship (noun)
relation, brotherhood, aunt, blood, Family, ancestor, lineage, clan, maternity, mother, paternity, father, motherhood, relative, nephew, kinship, niece, fraternity, kinfolk, kin, heredity, uncle, sisterhood, flesh, consanguinity, fatherhood.
person (noun)
cousin-german, full cousin, first cousin.

Other synonyms:

auntie, second cousin, maiden aunt. Other relevant words:
full cousin, Coz, first cousin, cousin once removed, connection, cousin-german, kinswoman, kinsman, auntie, relationship, second cousin, cousin twice removed.

Usage examples for cousin

  1. Cousin Jane has; she knows all about him! – Sally Dows and Other Stories by Bret Harte
  2. In coming to dine with my cousin – Madame de Treymes by Edith Wharton
  3. Of course you will be glad to see your cousin – The Eustace Diamonds by Anthony Trollope