Vanguard
Pronunciation : Van"guard`
Part of Speech : n.
Etymology : [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.)
Definition : Defn: The troops who march in front of an army; the advance guard; the van.
Source : Webster's Unabridged Dictionary, 1913