Day one and Windup

Day one

Day one noun - The point at which something begins.
Usage example: since day one of this project, we've always insisted that we would create the best product possible without any consideration of cost

Windup is an antonym for day one.

Windup

Windup noun - The last part of a process or action.
Usage example: wait until the windup of your sales pitch before giving up any information about the product's price point

Day one is an antonym for windup.
Cite this Source
Windup and Day one. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/day_one/windup
Day one & Windup. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/day_one/windup>.
Windup or Day one. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/day_one/windup.
Google Ngram Viewer shows how "day one" and "windup" have occurred on timeline