garden truck vs green groceries

garden truck and green groceries both are nouns.

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

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

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

Other synonyms of garden truck include green goods, produce.

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