dial vs controller

dial and controller both are nouns.

Word	Noun	Adjective	Verb	Adverb
dial	Yes	No	Yes	No
controller	Yes	No	No	No

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

Other hypernyms of dial include control.

dial (noun)	controller (noun)
the face of a timepiece; graduated to show the hours	a mechanism that controls the operation of a machine
a disc on a telephone that is rotated a fixed distance for each number called	someone who maintains and audits business accounts
the circular graduated indicator on various measuring instruments	a person who directs and restrains
the control on a radio or television set that is used for tuning

dial (verb)	controller (verb)
choose by means of a dial
operate a dial to select a telephone number