In intransitive terms the difference between grab and fetch
is that
grab is to make a sudden grasping or clutching motion (at something) while
fetch is to bring oneself; to make headway; to veer; as, to fetch about; to fetch to windward.
In lang=en terms the difference between grab and fetch
is that
grab is a soundbite while
fetch is attractive, popular.
As verbs the difference between grab and fetch
is that
grab is to grip suddenly; to seize; to clutch while
fetch is to retrieve; to bear towards; to go and get.
As nouns the difference between grab and fetch
is that
grab is a sudden snatch (for something while
fetch is the object of fetching; the source and origin of attraction; a force, quality or propensity which is attracting eg., in a given attribute of person, place, object, principle, etc.
As an adjective fetch is
attractive, popular.