nip vs tweak

nip and tweak both are nouns.

Word	Noun	Adjective	Verb	Adverb
nip	Yes	No	Yes	No
tweak	Yes	No	Yes	No

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

Other hyponyms of nip include goose.

nip (noun)	tweak (noun)
a small sharp bite or snip	a squeeze with the fingers
a tart spicy quality
the property of being moderately cold
the taste experience when a savoury condiment is taken into the mouth
a small drink of liquor

nip (verb)	tweak (verb)
squeeze tightly between the fingers	adjust finely
sever or remove by pinching or snipping	to be under the influence of methamphetamine
give a small sharp bite to	pull or pull out sharply
	pinch or squeeze sharply