recorder vs flageolet

recorder and flageolet both are nouns.

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

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

recorder: a tubular wind instrument with 8 finger holes and a fipple mouthpiece
flageolet: a small fipple flute with four finger holes and two thumb holes

Other hyponyms of recorder include shepherd's pipe, treble recorder, pennywhistle, tin whistle, whistle.

recorder (noun)	flageolet (noun)
a tubular wind instrument with 8 finger holes and a fipple mouthpiece	a small fipple flute with four finger holes and two thumb holes
equipment for making records	a French bean variety with light-colored seeds; usually dried
someone responsible for keeping records
a barrister or solicitor who serves as part-time judge in towns or boroughs