pant vs pant leg

pant and pant leg both are nouns.

Word	Noun	Adjective	Verb	Adverb
pant	Yes	No	Yes	No
pant leg	Yes	No	No	No

pant (noun)	pant leg (noun)
a short labored intake of breath with the mouth open	the leg of a pair of trousers
(usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately
the noise made by a short puff of steam (as from an engine)

pant (verb)	pant leg (verb)
breathe noisily, as when one is exhausted
utter while panting, as if out of breath