at one time

at one time idiom
  1. Simultaneously, at the same time, as in All the boys jumped into the pool at one time. For synonyms, see at once, def. 1; at the same time, def. 1.
  2. Formerly, in the past, as in At one time very few houses in town were on the market.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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