gravel vs bedevil

gravel is a noun but bedevil is not a noun.

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

As verbs, bedevil is a hypernym of gravel; that is, bedevil is a word with a broader meaning than gravel:

Other hypernyms of gravel include befuddle, confound, confuse, discombobulate, fox, fuddle, throw.

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

gravel (verb)	bedevil (verb)
be a mystery or bewildering to	be confusing or perplexing to; cause to be unable to think clearly
cover with gravel	treat cruelly
cause annoyance in; disturb, especially by minor irritations