gabardine vs dust coat

gabardine and dust coat both are nouns.

Word	Noun	Adjective	Verb	Adverb
gabardine	Yes	No	No	No
dust coat	Yes	No	No	No

As nouns, gabardine and dust coat are synonyms defined as:

gabardine and dust coat: a loose coverall (coat or frock) reaching down to the ankles

Other synonyms of gabardine include duster, gaberdine, smock.

gabardine (noun)	dust coat (noun)
a firm durable fabric with a twill weave	a loose coverall (coat or frock) reaching down to the ankles
a loose coverall (coat or frock) reaching down to the ankles
(usually in the plural) trousers made of flannel or gabardine or tweed or white cloth