survival of the fittest vs survival

survival of the fittest and survival both are nouns.

Word	Noun	Adjective	Verb	Adverb
survival of the fittest	Yes	No	No	No
survival	Yes	No	No	No

As nouns, survival of the fittest and survival are synonyms defined as:

survival of the fittest and survival: a natural process resulting in the evolution of organisms best adapted to the environment

Other synonyms of survival of the fittest include natural selection, selection.

survival of the fittest (noun)	survival (noun)
a natural process resulting in the evolution of organisms best adapted to the environment	something that survives
	a natural process resulting in the evolution of organisms best adapted to the environment
	a state of surviving; remaining alive