The period of time allowed for something is ended, as in Turn in your papers, students; time is up. This idiom uses up in the sense of "completed" or "expired," a usage dating from about 1400.
| Idioms: time is up |
The period of time allowed for something is ended, as in Turn in your papers, students; time is up. This idiom uses up in the sense of "completed" or "expired," a usage dating from about 1400.
| serviceability ratio (industrial engineering) | |
| Sloan, Alfred P. (Quotes By) | |
| utilization ratio (computer science) |
Copyrights:
![]() | Idioms. The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Company. All rights reserved. Read more |
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