ar ‧ ma ‧ da /ɑːˈmɑːdə $ ɑːr-/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Spanish ; Origin: Medieval Latin armata 'army, group of war ships' , from the past participle of Latin armare ; ⇨ ↑ arm 2 ]
a large group of things, especially ships or boats:
an armada of US naval vessels