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 \First"born`\, a. First brought forth; first in the order of birth; eldest; hence, most excellent; most distinguished or exalted; as, the firstborn child. Syn: eldest. [1913 Webster]