at once

at once  {adv. phr.}
1. Without delay; right now or right then; immediately.
Put a burning match next to a piece of paper and it will begin burning at once.
Mother called the children to lunch, and Paul came at once, but Brenda stayed in the sand pile a little longer.
Compare: ALL AT ONCE (2).
Categories: adverb children

An client error occurred: Error calling GET (403) The request cannot be completed because you have exceeded your <a href="/youtube/v3/getting-started#quota">quota</a>.