tortilla /tör-tē(l)ˈya, -yə/

1. (in Mexican cooking) a round flat cake of unleavened bread made from maize or wheat flour and cooked on a griddle, usu eaten hot with a filling
2. (in Spanish cooking) a thick omelette made mainly of potato and egg

• one's own man
• one's own woman
• one's self
• one-step
• one-stepped
• one-stepping
• one-steps
• one-stop
• one's true colours
• one-time
• one-to-one
• one-track
• one-trick pony
• one-two
• one-twos
• one-upmanship
• on every hand
• one-way
• one way and another
• one-way glass
• one-way mirror
• one way or the other
• one with another
• one-woman
• one-worlder