What does armada mean?
The definition of armada
Ar*ma”da, n.
Etym: [Sp. armada, L. as if armata (sc. classic fleet), fr. armatus, p. p. of armare. See Arm, v. t. Army.]

A fleet of armed ships; a squadron. Specifically, the Spanish fleet which was sent to assail England, a. d. 1558.