In set dances with more than one couple dancing, the couple doing the more complicated movement during any given portion of the dance. The role of active couple may pass from one couple to another. In many quadrilles, certain figures will have two active couples at any one time; in long set dances, quite often every other couple or every third couple is the active couple.

Self-motion or the power of moving one's self or itself without foreign or external aid.

The phase of radicalization in which a person wishes to join a radical group and disclaim their prior identity (name, family, country).

plural of activation energy

(US, military, law enforcement) An individual actively engaged in a shooting spree. / Used other than figuratively or idiomatically: see active, shooter.

plural of active shooter

plural of active volcano

plural of active galaxy

plural of active participle

plural of active volcano