gravel vs stupefy

gravel is a noun but stupefy is not a noun.

Word	Noun	Adjective	Verb	Adverb
gravel	Yes	No	Yes	No
stupefy	No	No	Yes	No

As verbs, gravel and stupefy are synonyms defined as:

Other synonyms of gravel include amaze, baffle, beat, bewilder, dumbfound, flummox, get, mystify, nonplus, perplex, pose, puzzle, stick, vex.

gravel (noun)	stupefy (noun)
rock fragments and pebbles

gravel (verb)	stupefy (verb)
be a mystery or bewildering to	make senseless or dizzy by or as if by a blow
cover with gravel	be a mystery or bewildering to
cause annoyance in; disturb, especially by minor irritations	make dull or stupid or muddle with drunkenness or infatuation