candidate [candidates](participant in an examination) noun [UK: ˈkæn.dɪ.dət] [US: ˈkæn.də.det]
participant [participants](one who participates) noun [UK: pɑː.ˈtɪ.sɪ.pənt] [US: parˈtɪ.sə.pənt]The participants accused him of carelessness. = Los participantes le acusaron de descuido.
participator [participators](one who participates) noun [UK: pɑː.ˈtɪ.sɪ.peɪ.tə] [US: pɑː.ˈtɪ.sɪ.peɪ.tə]