dray vs camion

dray and camion both are nouns.

Word	Noun	Adjective	Verb	Adverb
dray	Yes	No	No	No
camion	Yes	No	No	No

As nouns, dray and camion are synonyms defined as:

dray (noun)	camion (noun)
a low heavy horse cart without sides; used for haulage	a low heavy horse cart without sides; used for haulage
	a large truck designed to carry heavy loads; usually without sides