fastest

As adjectives the difference between fastest and false

is that fastest is (fast) while false is (label) one of two states of a boolean variable; logic.

As an adverb fastest

is .

As a verb fastest

is (fast).

As verbs the difference between speed and fastest

is that speed is to succeed; to prosper, be lucky while fastest is archaic second-person singular of fast.

As a noun speed

is the state of moving quickly or the capacity for rapid motion; rapidity.

As a proper noun Speed

is {{surname|from=nicknames}.

As an adjective fastest is

superlative of fast.

As an adverb fastest is

superlative of fast pos=adverb.

As adjectives the difference between fastest and quickest

is that fastest is superlative of fast while quickest is superlative of quick.

As an adverb fastest

is superlative of fast pos=adverb.

As a verb fastest

is archaic second-person singular of fast.

is likely misspelled.

has no English definition.

As an adjective fastest

is superlative of fast.

As an adverb fastest

is superlative of fast pos=adverb.

As a verb fastest

is archaic second-person singular of fast.

As adjectives the difference between vastest and fastest

is that vastest is superlative of vast while fastest is superlative of fast.

As an adverb fastest is

superlative of fast pos=adverb.

As a verb fastest is

archaic second-person singular of fast.

As verbs the difference between fastest and feastest

is that fastest is archaic second-person singular of fast while feastest is archaic second-person singular of feast.

As an adjective fastest

is superlative of fast.

As an adverb fastest

is superlative of fast pos=adverb.

As adjectives the difference between fattest and fastest

is that fattest is superlative of fat while fastest is superlative of fast.

As an adverb fastest is

superlative of fast pos=adverb.

As a verb fastest is

archaic second-person singular of fast.

As verbs the difference between fastest and hastest

is that fastest is (fast) while hastest is (archaic) (haste).

As an adjective fastest

is (fast).

As an adverb fastest

is .

As verbs the difference between fastest and wastest

is that fastest is archaic second-person singular of fast while wastest is archaic second-person singular of waste lang=en.

As an adjective fastest

is superlative of fast.

As an adverb fastest

is superlative of fast pos=adverb.

As verbs the difference between lastest and fastest

is that lastest is archaic second-person singular of last while fastest is archaic second-person singular of fast.

As an adjective fastest is

superlative of fast.

As an adverb fastest is

superlative of fast pos=adverb.