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down to the wire

down to the wire idiom

To the last minute; to the very end. For example, We're just about down to the wire with this project. This term comes from horseracing, where it was long the practice to stretch a wire across and above the track at the finish line. It was extended to figurative use about 1900.

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.