"player" in the noun sense
1. player, participant
a person who participates in or is skilled at some game
2. musician, instrumentalist, player
someone who plays a musical instrument (as a profession)
3. actor, histrion, player, thespian, role player
a theatrical performer
a person who pursues a number of different social and sexual partners simultaneously
5. participant, player
someone who takes part in an activity
"he was a major player in setting up the corporation"
Source: WordNet® (An amazing lexical database of English)
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