fittest

As an adjective fittest

is superlative of fit.

As a verb fittest

is archaic second-person singular of fit.

As a noun survival is

the fact or act of surviving; continued existence or life.

As adjectives the difference between best and fittest

is that best is superlative of good while fittest is superlative of fit.

As verbs the difference between best and fittest

is that best is to surpass in skill or achievement while fittest is archaic second-person singular of fit.

As an adverb best

is superlative of well POS=adverb.

As a noun best

is the supreme effort one can make, or has made.

As a proper noun Best

is {{surname}.

As adjectives the difference between fittest and fattest

is that fittest is superlative of fit while fattest is superlative of fat.

As a verb fittest

is archaic second-person singular of fit.

As verbs the difference between fittest and hittest

is that fittest is archaic second-person singular of fit while hittest is en-archaic second-person singular of hit.

As an adjective fittest

is superlative of fit.

As verbs the difference between fittest and sittest

is that fittest is archaic second-person singular of fit while sittest is en-archaic second-person singular of sit.

As an adjective fittest

is superlative of fit.