Save Gender Masculine Usage English (American, Modern, Rare) Pronounced Pron. /ˈkeɪ.ləb/(American English) [key·simplify] Other Forms FormsCaeleb, Caelob, Caleb, Calyb, Cayleb, Kaileb, Kailub, Kaleb, Kalib, Kalyb, Kayleb, Kaylub Meaning & History Variant of Caleb.