pantomime vs panto

pantomime and panto both are nouns.

Word	Noun	Adjective	Verb	Adverb
pantomime	Yes	No	Yes	No
panto	Yes	No	No	No

As nouns, panto is a hyponym of pantomime; that is, panto is a word with a more specific, narrower meaning than pantomime:

pantomime (noun)	panto (noun)
a performance using gestures and body movements without words	an abbreviation of pantomime

pantomime (verb)	panto (verb)
act out without words but with gestures and bodily movements only