groove
noun
1. 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)
Similar word(s): channel
Definition categories: shape, depression, impression, imprint
2. a settled and monotonous routine that is hard to escape
Similar word(s): rut
Definition categories: act, routine
3. (anatomy) any furrow or channel on a bodily structure or part
Similar word(s): vallecula
Definition categories: body