1. The cutting of spiral grooves on the inside of the barrel of a firearm
   - rifling

1. Make a groove in, or provide with a groove
   "groove a vinyl record" 
2. Hollow out in the form of a furrow or groove
   - furrow, rut

Derived forms: groovings

See also: groover

Type of: cut into, delve, dig, formation, incise, shaping, turn over

Encyclopedia: Groove

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• invaluable