quarter note vs crotchet

quarter note and crotchet both are nouns.

Word	Noun	Adjective	Verb	Adverb
quarter note	Yes	No	No	No
crotchet	Yes	No	No	No

As nouns, quarter note and crotchet are synonyms defined as:

quarter note and crotchet: a musical note having the time value of a quarter of a whole note

quarter note (noun)	crotchet (noun)
a musical note having the time value of a quarter of a whole note	a small tool or hooklike implement
	a strange attitude or habit
	a musical note having the time value of a quarter of a whole note
	a sharp curve or crook; a shape resembling a hook