Definitions for "Follow suit"
Keywords:  led, trick, suit, trump, revoke
Every player is obliged to play the card of the same suit as the one that was first led to the trick, if in possession of one. Failure to follow suit constitutes a revoke.
Play a card of the same suit as the one that was led by the other player.
(v.) To play a card of the same suit as the led suit.
Keywords:  someone, doing
do what someone else is doing