Pronunciation (US) IPA (key): /ˈkɑliɡz/ (UK) IPA (key): /ˈkɒliːɡz/ Hyphenation: col‧leagues Noun Singular colleague Plural colleagues The plural form of colleague; more than one (kind of) colleague. The teacher talked to his colleagues.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads