cannon fodder vs fodder

cannon fodder and fodder both are nouns.

Word	Noun	Adjective	Verb	Adverb
cannon fodder	Yes	No	No	No
fodder	Yes	No	Yes	No

As nouns, cannon fodder and fodder are synonyms defined as:

cannon fodder and fodder: soldiers who are regarded as expendable in the face of artillery fire

Other synonyms of cannon fodder include fresh fish.

cannon fodder (noun)	fodder (noun)
soldiers who are regarded as expendable in the face of artillery fire	coarse food (especially for livestock) composed of entire plants or the leaves and stalks of a cereal crop
	soldiers who are regarded as expendable in the face of artillery fire

cannon fodder (verb)	fodder (verb)
	give fodder (to domesticated animals)