noun
Sensitive mental touch; special skill or faculty; keen perception or discernment; ready power of appreciating and doing what is required by circumstances; the ability to say the right thing.
Propriety; manners (etiquette).
noun
The sense of touch; feeling.
(music) The stroke in beating time.
(psychology) A verbal operant which is controlled by a nonverbal stimulus (such as an object, event, or property of an object) and is maintained by nonspecific social reinforcement (praise).
verb
(psychology) To use a tact (a kind of verbal operant).
noun
(slang) Clipping of tactic.