tac ‧ o /ˈtækəʊ, ˈtɑː- $ ˈtɑːkoʊ/ BrE AmE noun ( plural tacos ) [countable]
[ Date: 1900-2000 ; Language: Mexican Spanish ; Origin: Spanish , 'wad, snack' ]
a type of Mexican food made from a corn ↑ tortilla that is folded in half and filled with meat, beans etc