telephone dial vs selector

telephone dial and selector both are nouns.

Word	Noun	Adjective	Verb	Adverb
telephone dial	Yes	No	No	No
selector	Yes	No	No	No

As nouns, selector is a hypernym of telephone dial; that is, selector is a word with a broader meaning than telephone dial:

telephone dial: a disc on a telephone that is rotated a fixed distance for each number called
selector: a switch that is used to select among alternatives

Other hypernyms of telephone dial include selector switch.

telephone dial (noun)	selector (noun)
a disc on a telephone that is rotated a fixed distance for each number called	a switch that is used to select among alternatives
	a person who chooses or selects out