mite box vs poor box

mite box and poor box both are nouns.

Word	Noun	Adjective	Verb	Adverb
mite box	Yes	No	No	No
poor box	Yes	No	No	No

As nouns, mite box and poor box are synonyms defined as:

mite box and poor box: box for collecting alms, especially one in a church

Other synonyms of mite box include alms box.

mite box (noun)	poor box (noun)
box for collecting alms, especially one in a church	box for collecting alms, especially one in a church