gravel vs get at

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

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

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

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

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

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

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