green groceries vs garden truck

green groceries and garden truck both are nouns.

Word	Noun	Adjective	Verb	Adverb
green groceries	Yes	No	No	No
garden truck	Yes	No	No	No

As nouns, green groceries and garden truck are synonyms defined as:

green groceries and garden truck: fresh fruits and vegetable grown for the market

Other synonyms of green groceries include green goods, produce.

green groceries (noun)	garden truck (noun)
fresh fruits and vegetable grown for the market	fresh fruits and vegetable grown for the market