manna from heaven vs manna

manna from heaven and manna both are nouns.

Word	Noun	Adjective	Verb	Adverb
manna from heaven	Yes	No	No	No
manna	Yes	No	No	No

As nouns, manna from heaven and manna are synonyms defined as:

manna from heaven and manna: (Old Testament) food that God gave the Israelites during the Exodus

Other synonyms of manna from heaven include miraculous food.

manna from heaven (noun)	manna (noun)
a sudden happening that brings good fortune (as a sudden opportunity to make money)	(Old Testament) food that God gave the Israelites during the Exodus
(Old Testament) food that God gave the Israelites during the Exodus	hardened sugary exudation of various trees