stab vs twinge

stab and twinge both are nouns.

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

As nouns, stab and twinge are synonyms defined as:

Other synonyms of stab include pang.

stab (noun)	twinge (noun)
a strong blow with a knife or other sharp pointed instrument	a sharp stab of pain
informal words for any attempt or effort	a sudden sharp feeling
a sudden sharp feeling

stab (verb)	twinge (verb)
stab or pierce	squeeze tightly between the fingers
poke or thrust abruptly	cause a stinging pain
use a knife on	feel a sudden sharp, local pain