ache vs twinge

ache and twinge both are nouns.

Word	Noun	Adjective	Verb	Adverb
ache	Yes	No	Yes	No
twinge	Yes	No	Yes	No

As verbs, twinge is a hyponym of ache; that is, twinge is a word with a more specific, narrower meaning than ache:

Other hyponyms of ache include catch, get, prick, sting, kill.

ache (noun)	twinge (noun)
a dull persistent (usually moderately intense) pain	a sharp stab of pain
	a sudden sharp feeling

ache (verb)	twinge (verb)
have a desire for something or someone who is not present	squeeze tightly between the fingers
be the source of pain	cause a stinging pain
feel physical pain	feel a sudden sharp, local pain