treble vs sing

treble is a noun but sing is not a noun.

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

As verbs, sing is a hypernym of treble; that is, sing is a word with a broader meaning than treble:

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

treble (adjective)	sing (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

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