sixteenth note vs semiquaver

sixteenth note and semiquaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
sixteenth note	Yes	No	No	No
semiquaver	Yes	No	No	No

As nouns, sixteenth note and semiquaver are synonyms defined as:

sixteenth note and semiquaver: a musical note having the time value of a sixteenth of a whole note

sixteenth note (noun)	semiquaver (noun)
a musical note having the time value of a sixteenth of a whole note	a musical note having the time value of a sixteenth of a whole note