garbage heap vs trash heap

garbage heap and trash heap both are nouns.

Word	Noun	Adjective	Verb	Adverb
garbage heap	Yes	No	No	No
trash heap	Yes	No	No	No

As nouns, garbage heap and trash heap are synonyms defined as:

garbage heap and trash heap: an accumulation of refuse and discarded matter

Other synonyms of garbage heap include junk heap, junk pile, refuse heap, rubbish heap, scrapheap, trash pile.

garbage heap (noun)	trash heap (noun)
an accumulation of refuse and discarded matter	an accumulation of refuse and discarded matter