get at vs gravel

get at is not a noun while gravel is a noun.

Word	Noun	Adjective	Verb	Adverb
get at	No	No	Yes	No
gravel	Yes	No	Yes	No

As verbs, get at and gravel are synonyms defined as:

get at and gravel: cause annoyance in; disturb, especially by minor irritations

Other synonyms of get at include annoy, bother, chafe, devil, get to, irritate, nark, nettle, rag, rile, vex.

get at (noun)	gravel (noun)
	rock fragments and pebbles

get at (verb)	gravel (verb)
cause annoyance in; disturb, especially by minor irritations	be a mystery or bewildering to
reach or gain access to	cover with gravel
influence by corruption	cause annoyance in; disturb, especially by minor irritations