Found 2 items, similar to firstborn.
English → English (WordNet) Definition: firstborn firstborn adj : first in order of birth; “the firstborn child” [syn: eldest] n : the offspring who came first in the order of birth [syn: eldest]
English → English (gcide) Definition: firstborn firstborn \firstborn\ n. The first child born to a parent; as, his firstborn was showered with gifts from relatives. Syn: eldest. [PJC]