recorder vs rapporteur

recorder and rapporteur both are nouns.

Word	Noun	Adjective	Verb	Adverb
recorder	Yes	No	No	No
rapporteur	Yes	No	No	No

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

recorder: someone responsible for keeping records
rapporteur: a recorder appointed by a committee to prepare reports of the meetings

recorder (noun)	rapporteur (noun)
a tubular wind instrument with 8 finger holes and a fipple mouthpiece	a recorder appointed by a committee to prepare reports of the meetings
equipment for making records
someone responsible for keeping records
a barrister or solicitor who serves as part-time judge in towns or boroughs