Word parts first + born Pronunciation enPR: fûrstʹ-bôrn', IPA (key): /ˈfɜː(r)st.ˌbɔː(r)n/ (UK) IPA (key): [ˈfɜːst.ˌbɔːn] (US) IPA (key): [ˈfɝst.ˌbɔɚ̯n] Audio (UK)(file) Hyphenation: first‧born Noun Singular firstborn Plural firstborns or firstborn A firstborn is the first child of a parent or family. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads