vanguard
Pronunciation:
/ˈvɛnˌɡɐːd//ˈvanˌɡɑːd//ˈvænˌɡɑɹd/noun
Definitions
The leading units at the front of an army or fleet.
Synonyms:advance guardavant-gardeAntonyms:rearguard(by extension) The person(s) at the forefront of any group or movement.
Synonyms:avant-garde