A step in couple dancing that
spins. If you're stepping onto your left foot, you step around your partner; and if you're stepping onto your right foot, you step between your partner's feet. Each and every step turns.
There are two types of pivots: traveling and non-traveling. In traveling pivots the couple turns 180o with a single step, not unlike Chaînés in ballet, but with a partner. Thus each step travels in the same direction.
Non-traveling pivots turn less than 180o, and therefore don't go much of anywhere.