Concave vs. Groove — What's the Difference?

Curved like the inner surface of a sphere.

A long narrow furrow or channel.

A concave surface, structure, or line.

The spiral track cut into a phonograph record for the stylus to follow.

To make concave.

(Informal) An interesting or enjoyable rhythm in a piece of music, especially in jazz or popular music.

Curved like the inner surface of a sphere or bowl.

(Informal) A settled routine

Not convex; having at least one internal angle greater than 180 degrees.

A situation or an activity that one enjoys or to which one is especially well suited

Satisfying the property that all segments connecting two points on the function's graph lie below the function.

A very pleasurable experience.

Hollow; empty.

To cut a groove or grooves in.

A concave surface or curve.

(Baseball) To throw (a pitch) over the middle of home plate, where it is likely to be hit.

The vault of the sky.

To take great pleasure or satisfaction; enjoy oneself

One of the celestial spheres of the Ptolemaic or geocentric model of the world.

To be affected with pleasurable excitement.

(manufacturing) An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.

To react or interact harmoniously.

(surfing) An indentation running along the base of a surfboard, intended to increase lift.

A long, narrow channel or depression; e.g., such a slot cut into a hard material to provide a location for an engineering component, a tyre groove, or a geological channel or depression.

(skateboarding) An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.

A fixed routine.

(gambling) A playing card made concave for use in cheating.

The middle of the strike zone in baseball where a pitch is most easily hit.

To render concave, or increase the degree of concavity.

(music) A pronounced, enjoyable rhythm.

Hollow and curved or rounded; vaulted; - said of the interior of a curved surface or line, as of the curve of the of the inner surface of an eggshell, in opposition to convex; as, a concave mirror; the concave arch of the sky.

A good feeling (often as in the groove).

Hollow; void of contents.

(mining) A shaft or excavation.

A hollow; an arched vault; a cavity; a recess.

(motorsport) A racing line, a path across the racing circuit's surface that a racecar will usually track on. (Note: There may be multiple grooves on any particular circuit or segment of circuit)

A curved sheath or breasting for a revolving cylinder or roll.

(transitive) To cut a groove or channel in; to form into channels or grooves; to furrow.

To make hollow or concave.

(intransitive) To perform, dance to, or enjoy rhythmic music.

Curving inward

A furrow, channel, or long hollow, such as may be formed by cutting, molding, grinding, the wearing force of flowing water, or constant travel; a depressed way; a worn path; a rut.

Hence: The habitual course of life, work, or affairs; fixed routine.

A shaft or excavation.

To cut a groove or channel in; to form into channels or grooves; to furrow.

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)

A settled and monotonous routine that is hard to escape;

(anatomy) any furrow or channel on a bodily structure or part

Make a groove in, or provide with a groove;

Hollow out in the form of a furrow or groove;