flageolet vs treble recorder

flageolet and treble recorder both are nouns.

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

As nouns, flageolet and treble recorder are synonyms defined as:

flageolet and treble recorder: a small fipple flute with four finger holes and two thumb holes

Other synonyms of flageolet include shepherd's pipe.

flageolet (noun)	treble recorder (noun)
a small fipple flute with four finger holes and two thumb holes	a small fipple flute with four finger holes and two thumb holes
a French bean variety with light-colored seeds; usually dried