supporting for learners of EnglishPowered by COBUILD (səpɔːʳtɪŋ)
1. adjective [ADJ n]
In a film or play, a supporting actor or actress is one who has an important part, but not the most important part. ⇒ ...the winner of the best supporting actress award. ⇒ ...acting the supporting role in a Harrison Ford-type movie.