on end

Idioms  

1. Continuously, without interruption, as in It's been raining for days on end. This term, which might just as well be put “seemingly without end,” dates from about 1300.

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Example Sentences

Widespread damage could keep energy prices high for months on end, regardless of whether Hormuz is reopened to traffic.

From MarketWatch • Mar. 21, 2026

What began as a way to autocomplete code quickly evolved into semiautonomous AI bots, or “agents,” that can work for hours on end with little human oversight.

From The Wall Street Journal • Mar. 21, 2026

Electricity is turned off for hours on end to ration supplies, and more than 1,000 of Kyiv's 12,000 high-rise residential buildings have been without heating for the past month after a heating station was destroyed.

From Barron's • Feb. 26, 2026

Smartphone dependence has existed for years, but experts say it was compounded for people when the COVID-19 pandemic forced people indoors for weeks and months on end.

From Los Angeles Times • Feb. 21, 2026

There were footsteps on the stair and Bunny, his eyes screwed up and his hair standing on end, tottered in wearing his pajamas.

From "The Secret History" by Donna Tartt

Related Words

• erect
• perpendicular
• vertical