garden truck vs solid food

garden truck and solid food both are nouns.

Word	Noun	Adjective	Verb	Adverb
garden truck	Yes	No	No	No
solid food	Yes	No	No	No

As nouns, solid food is a hypernym of garden truck; that is, solid food is a word with a broader meaning than garden truck:

garden truck: fresh fruits and vegetable grown for the market
solid food: any solid substance (as opposed to liquid) that is used as a source of nourishment

Other hypernyms of garden truck include food.

garden truck (noun)	solid food (noun)
fresh fruits and vegetable grown for the market	any solid substance (as opposed to liquid) that is used as a source of nourishment