dither vs fret

dither and fret both are nouns.

Word	Noun	Adjective	Verb	Adverb
dither	Yes	No	Yes	No
fret	Yes	No	Yes	No

As verbs, fret is a hypernym of dither; that is, fret is a word with a broader meaning than dither:

Other hypernyms of dither include fuss, niggle.

As verbs, fret is a hypernym of dither; that is, fret is a word with a broader meaning than dither:

dither (noun)	fret (noun)
an excited state of agitation	a small bar of metal across the fingerboard of a musical instrument; when the string is stopped by a finger at the metal bar it will produce a note of the desired pitch
	an ornamental pattern consisting of repeated vertical and horizontal lines (often in relief)
	a spot that has been worn away by abrasion or erosion
	agitation resulting from active worry

dither (verb)	fret (verb)
make a fuss; be agitated	wear away or erode
act nervously; be undecided; be uncertain	remove soil or rock
	cause friction
	be too tight; rub or press
	decorate with an interlaced design
	carve a pattern into
	be agitated or irritated
	cause annoyance in
	gnaw into; make resentful or angry
	worry unnecessarily or excessively
	become or make sore by or as if by rubbing
	provide (a musical instrument) with frets