shovel vs delve

shovel is a noun but delve is not a noun.

Word	Noun	Adjective	Verb	Adverb
shovel	Yes	No	Yes	No
delve	No	No	Yes	No

As verbs, delve is a hypernym of shovel; that is, delve is a word with a broader meaning than shovel:

Other hypernyms of shovel include cut into, dig, turn over.

shovel (noun)	delve (noun)
a hand tool for lifting loose material; consists of a curved container or scoop and a handle
a fire iron consisting of a small shovel used to scoop coals or ashes in a fireplace
a machine for excavating
the quantity a shovel can hold

shovel (verb)	delve (verb)
dig with or as if with a shovel	turn up, loosen, or remove earth