conciliator vs intermediary

conciliator and intermediary both are nouns.

Word	Noun	Adjective	Verb	Adverb
conciliator	Yes	No	No	No
intermediary	Yes	No	No	No

As nouns, intermediary is a hypernym of conciliator; that is, intermediary is a word with a broader meaning than conciliator:

Other hypernyms of conciliator include go-between, intercessor, intermediator, mediator.

conciliator (noun)	intermediary (noun)
someone who tries to bring peace	a negotiator who acts as a link between parties