Definitions
1.NounA long, narrow channel or depression; e.g., such a slot cut into a hard material to provide a location for an engineering component, a tire groove, or a geological channel or depression.
2.NounA fixed routine.
3.NounThe middle of the strike zone in baseball where a pitch is most easily hit.
4.NounA pronounced, enjoyable rhythm.
5.NounA good feeling (often as in the groove).
6.NounA shaft or excavation.
7.NounThe optimal route around the track, or any of several such routes.
8.VerbTo cut a groove or channel in; to form into channels or grooves; to furrow.
9.VerbTo perform, dance to, or enjoy rhythmic music."I was just starting to groove to the band when we had to leave."