responder vs hedger

responder and hedger both are nouns.

Word	Noun	Adjective	Verb	Adverb
responder	Yes	No	No	No
hedger	Yes	No	No	No

As nouns, hedger is a hyponym of responder; that is, hedger is a word with a more specific, narrower meaning than responder:

Other hyponyms of responder include assenter, equivocator, tergiversator, interviewee, examinee, testee.

responder (noun)	hedger (noun)
someone who responds	a gardener who takes care of and trims hedges
	someone who counterbalances one transaction (as a bet) against another in order to protect against loss
	a respondent who avoids giving a clear direct answer