dig vs hollow

dig and hollow both are nouns.

Word	Noun	Adjective	Verb	Adverb
dig	Yes	No	Yes	No
hollow	Yes	Yes	Yes	No

As verbs, hollow is a hypernym of dig; that is, hollow is a word with a broader meaning than dig:

Other hypernyms of dig include core out, hollow out.

As verbs, dig and hollow are synonyms defined as:

Other synonyms of dig include excavate.

dig (noun)	hollow (noun)
the act of digging	a depression hollowed out of solid matter
the act of touching someone suddenly with your finger or elbow	a small valley between mountains
a small gouge (as in the cover of a book)	a cavity or space in something
an aggressive remark directed at a person like a missile and intended to have a telling effect
the site of an archeological exploration

dig (adjective)	hollow (adjective)
	not solid; having a space or gap or cavity
	lacking in substance or character
	devoid of significance or force
	as if echoing in a hollow space

dig (verb)	hollow (verb)
get the meaning of something	remove the interior of
turn up, loosen, or remove earth	remove the inner part or the core of
create by digging
remove the inner part or the core of
poke or thrust abruptly
thrust down or into
remove, harvest, or recover by digging
work hard