tact

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 and avoid statements that will give offence or pain even if true.

Propriety; manners (etiquette).

(slang) Clipping of tactic.

The sense of touch; feeling.

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).

The stroke in beating time.

To use a tact (a kind of verbal operant).