Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Adverb: at once
  1. Without delay or hesitation; with no time intervening
    "he answered at once";
    - immediately, instantly, straightaway, straight off, directly, now, right away, forthwith, like a shot [informal], right off the bat [N. Amer, informal], instantaneously, outright, in a flash, tout de suite
     
  2. Simultaneously
    "he took three cookies at once";
    - at a time, at one time