As nouns the difference between groove and flow
is that
groove is 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 while
flow is a movement in people or things with a particular way in large numbers or amounts.
As verbs the difference between groove and flow
is that
groove is to cut a groove or channel in; to form into channels or grooves; to furrow while
flow is to move as a fluid from one position to another.