gravel vs confound

gravel is a noun but confound is not a noun.

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

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

gravel: be a mystery or bewildering to
confound: be confusing or perplexing to; cause to be unable to think clearly

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

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

gravel (verb)	confound (verb)
be a mystery or bewildering to	mistake one thing for another
cover with gravel	be confusing or perplexing to; cause to be unable to think clearly
cause annoyance in; disturb, especially by minor irritations