vanguard
n. தூசிப் படை, முன்னணிப் படை.
Van"guard`, n. Etym: [For vantguard, avantguard, F. avant-garde; avant before, fore + garde guard. See Avant, Ab-,Ante-, and Guard, and cf. Advance, Vamp, Van of an army, Vaward.] (Mil.) Defn: The troops who march in front of an army; the advance guard; the van.