treble recorder vs fipple flute

treble recorder and fipple flute both are nouns.

Word	Noun	Adjective	Verb	Adverb
treble recorder	Yes	No	No	No
fipple flute	Yes	No	No	No

As nouns, fipple flute is a hypernym of treble recorder; that is, fipple flute is a word with a broader meaning than treble recorder:

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

Other hypernyms of treble recorder include fipple pipe, recorder, vertical flute.

treble recorder (noun)	fipple flute (noun)
a small fipple flute with four finger holes and two thumb holes	a tubular wind instrument with 8 finger holes and a fipple mouthpiece