kəˈlæbəɹeɪtɚ kəˈlæbəɹeɪtə ˈpɑːtnə(ɹ) ˈpɑɹtnɚ ˈpɐːtnɘ ˈkwɪz.lɪŋ an associate in an activity or endeavor or sphere of common interest the musician and the librettist were collaborators sexual partners someone who collaborates with an enemy occupying force someone who assists in a plot