tweak vs tune

tweak and tune both are nouns.

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

As verbs, tune is a hypernym of tweak; that is, tune is a word with a broader meaning than tweak:

Other hypernyms of tweak include tune up.

tweak (noun)	tune (noun)
a squeeze with the fingers	the adjustment of a radio receiver or other circuit to a required frequency
	the property of producing accurately a note of a given pitch
	a succession of notes forming a distinctive sequence

tweak (verb)	tune (verb)
adjust finely	adjust the pitches of (musical instruments)
to be under the influence of methamphetamine	adjust for (better) functioning
pull or pull out sharply
pinch or squeeze sharply