Definitions of groove:
- noun:    (anatomy) any furrow or channel on a bodily structure or part
- 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)
- noun:    a settled and monotonous routine that is hard to escape
- verb:    make a groove in, or provide with a groove Example: "Groove a vinyl record" 
- verb:    hollow out in the form of a furrow or groove