Definition of At once

1. Adverb. Without delay or hesitation; with no time intervening. "Come here now!"

2. Adverb. Simultaneously. "He took three cookies at a time"
Exact synonyms: At A Time, At One Time

Definition of At once

1. Adverb. (obsolete) In one group; together. ¹

2. Adverb. (idiomatic) At the same time; simultaneously. ¹

3. Adverb. (idiomatic) Immediately; now; right away. ¹

¹ Source:

At Once Pictures

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Lexicographical Neighbors of At Once

at last
at latter Lammas
at least
at leisure
at leisure(p)
at length
at liberty(p)
at loggerheads
at long last
at loose ends
at most
at night
at no time
at odds
at odds(p)
at once
at one
at one's fingertips
at one time
at one with
at pains
at peace
at peace(p)
at peace with
at present
at random
at rest
at rest(a)
at rest(p)
at school

Literary usage of At once

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Novels of Jane Austen by Jane Austen (1892)
"I think nobody can justly accuse me of sparing myself upon any occasion, but really I cannot do everything at once. And as for Fanny's just stepping down to ..."

2. Sense and Sensibility by Jane Austen (1882)
"The promise was readily given, and Willoughby's behaviour during the whole of the evening declared at once his affection and happiness. ..."

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