vanguard

As nouns the difference between vanguard and pervert

is that vanguard is the leading units at the front of an army or fleet while pervert is one who has been perverted; one who has turned to error; one who has turned to a twisted sense of values or morals.

As a verb pervert is

to turn another way; to divert.

As nouns the difference between sentinel and vanguard

is that sentinel is a sentry or guard while vanguard is the leading units at the front of an army or fleet.

As a verb sentinel

is to watch over as a guard.

Avantgardefa is likely misspelled.

Avantgardefa has no English definition.

As a noun vanguard is

the leading units at the front of an army or fleet.

As nouns the difference between vanguard and forerider

is that vanguard is the leading units at the front of an army or fleet while forerider is someone who rides at the front; a scout, or someone in the vanguard.

As nouns the difference between vanguard and foreward

is that vanguard is the leading units at the front of an army or fleet while foreward is an advance group; the vanguard.

As an adverb foreward is

misspelling of forward.