noun
1 criminal activity
VERB + FOUL PLAY
▪ suspect
▪ rule out ( esp. BrE )
▪
The police have ruled out ~ in their investigation of his death.
PHRASES
▪ evidence of ~
▪
The police found no evidence of ~.
2 ( BrE ) play that is against the rules
ADJECTIVE
▪ deliberate , serious
VERB + FOUL PLAY
▪ be guilty of
▪
He was clearly guilty of ~ and deserved to be sent off.