| Cousin 1. (n.) One collaterally related more remotely than a brother or sister; especially, the son or daughter of an uncle or aunt. 2. (n.) 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. 3. (n.) Allied; akin. Thesaurus Entries aunt, auntie, blood brother, brethren, brother, bub, bubba, bud, buddy, country cousin, cousin once removed, cousin twice removed, daughter, father, first cousin, foster brother, frater, grandnephew, grandniece, granduncle, great-aunt, great-uncle, half brother, kid brother, mother, nephew, niece, nuncle, nunks, nunky, second cousin, sis, sissy, sister, sister-german, sistern, son, stepbrother, stepsister, unc, uncle, uncs, uterine brother |