repel vs turn down

repel and turn down both are verbs.

Word	Noun	Adjective	Verb	Adverb
repel	No	No	Yes	No
turn down	No	No	Yes	No

As verbs, turn down is a hypernym of repel; that is, turn down is a word with a broader meaning than repel:

Other hypernyms of repel include disdain, freeze off, pooh-pooh, reject, scorn, spurn.

repel (verb)	turn down (verb)
reject outright and bluntly	make lower or quieter
force or drive back	take a downward direction
cause to move back by force or influence	reject with contempt
be repellent to; cause aversion in	not accept as true
fill with distaste	refuse entrance or membership