sing vs treble

sing is not a noun while treble is a noun.

Word	Noun	Adjective	Verb	Adverb
sing	No	No	Yes	No
treble	Yes	Yes	Yes	No

As verbs, treble is a hyponym of sing; that is, treble is a word with a more specific, narrower meaning than sing:

sing (noun)	treble (noun)
	the pitch range of the highest female voice

sing (adjective)	treble (adjective)
	having or denoting a high range
	three times as great or many
	having three units or components or elements
	having more than one decidedly dissimilar aspects or qualities

sing (verb)	treble (verb)
make a whining, ringing, or whistling sound	increase threefold
divulge confidential information or secrets	sing treble
to make melodious sounds
produce tones with the voice
deliver by singing