groove (Noun) — A long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record).
groove (Noun) — A settled and monotonous routine that is hard to escape. ex. "they fell into a conversational groove"
groove (Noun) — (anatomy) any furrow or channel on a bodily structure or part.
groove (Noun) — (baseball) the middle of the strike zone.
groove (Verb) — Make a groove in, or provide with a groove. ex. "groove a vinyl record"
groove (Verb) — Hollow out in the form of a furrow or groove. ex. "groove soil"
groove (Verb) — Dance to rock or pop music.