| Nephew 1. (n.) A grandson or grandchild, or remoter lineal descendant. 2. (n.) A cousin. 3. (n.) The son of a brother or a sister, or of a brother-in-law or sister-in-law. Thesaurus Entries aunt, auntie, blood brother, brethren, brother, bub, bubba, bud, buddy, country cousin, 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, niece, nuncle, nunks, nunky, second cousin, sis, sissy, sister, sister-german, sistern, son, stepbrother, stepsister, unc, uncle, uncs, uterine brother |