coverall vs smock

coverall and smock both are nouns.

Word	Noun	Adjective	Verb	Adverb
coverall	Yes	No	No	No
smock	Yes	No	Yes	No

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

coverall: a loose-fitting protective garment that is worn over other clothing
smock: a loose coverall (coat or frock) reaching down to the ankles

Other hyponyms of coverall include dust coat, duster, gabardine, gaberdine, jumper, boilers suit, boilersuit, overall.

coverall (noun)	smock (noun)
a loose-fitting protective garment that is worn over other clothing	a loose coverall (coat or frock) reaching down to the ankles

coverall (verb)	smock (verb)
	embellish by sewing in straight lines crossing each other diagonally