at once

Idioms  

1. At the same time, as in We can't all fit into the boat at once . [First half of 1200s] Also see at one time , def. 1.

2. Immediately, as in Mother told the children to come inside at once . [First half of 1500s]

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Example Sentences

Many must gather secretly, careful not to arrive all at once or sing too loudly, lest mobs or police hear about it.

From The Wall Street Journal

In such an environment, the risks of any disaster are magnified: When people live so close together, a fire can spread quickly and affect thousands at once.

From The Wall Street Journal

A strategy that strengthens the body's natural capacity to replace worn-out mitochondria could, in principle, help address all of these problems at once.

From Science Daily

Unlike the induced-diabetes model, where the main goal was to stop the recipient's immune system from rejecting donor islet cells, the new model involved transplanted islets that faced two problems at once.

From Science Daily

Make sure to choose a few options that you can easily make-ahead or serve cold to save yourself the stress of needing half a dozen hot dishes on the table at once.

From Salon

Related Words

• directly
• expeditiously
• hastily
• instantly
• quickly
• rapidly
• speedily
• swiftly