How to use vanguard in a sentence. The word vanguard, in its original military usage, dates back to the mid-1400s, first entering English as vaunt garde.This term, in turn, comes from the French word avant-garde, with avant meaning "in front" and garde as the cognate of "guard." See more. the vanguard meaning: 1. the part of an army or navy that leads an attack on an enemy 2. a group of people who lead theâ¦. Definition of vanguard. Research execution and transition of these programs will be managed by a new, provisional Transformational Capabilities Office under the Air Force Technology executive officer. How to use avant-garde in a sentence. Avant-garde definition is - an intelligentsia that develops new or experimental concepts especially in the arts. The three programs are Golden Horde, Navigation Technology Satellite 3 and Skyborg. (Photo courtesy of Sgt. Vanguard definition is - the forefront of an action or movement. Avant-garde definition, the advance group in any field, especially in the visual, literary, or musical arts, whose works are characterized chiefly by unorthodox and experimental methods. Latest News 3:12 am Interrogating militaryâs âspiritual warfareâ against Boko Haram Political party. Comments expressed here do not reflect the opinions of vanguard newspapers or any employee thereof. Halbisengibbs is a recipient of the Distinguished Service Cross and the Non Commissioned Officers Association of the United States of America Military Vanguard award. An example of a famous rearguard action outside the military context is the effort by Roman emperor Julian around 362 A.D. to restore Paganism as the state religion instead of Christianity. 1st Class Jarion Halbisengibbs) the position of greatest importance or advancement; the leading position in any movement or field; "the Cotswolds were once at the forefront of woollen manufacturing in England"; "the idea of motion was always to the forefront of his mind and central to his philosophy" the leading units moving at the head of an army Quick reaction force; Vanguard (military tactics) Battle of Tirad Pass; References The vanguard (also called the advance guard) is the leading part of an advancing military formation. A vanguard party is a political party at the fore of a mass-action political movement and of a revolution.In the praxis of political science, the concept of the vanguard party, composed of professional revolutionaries, was first effected by the Bolshevik Party in the Russian Revolution of 1917. History. It has a number of functions, including seeking out the enemy and securing ground in advance of the main force. Dictionary entry overview: What does vanguard mean? Learn more. See also. â¢ VANGUARD (noun) The noun VANGUARD has 3 senses:. Sportswriters employ the idiom as well. The foremost position in an army or fleet advancing into battle; the foremost or leading position in a trend or movement; those occupying a foremost position. 1. the leading units moving at the head of an army 2. any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts) 3. the position of greatest importance or advancement; the leading position in any movement or field The Vanguard Program launched with the selection of three initiatives.