on-site

American  

[on-sahyt, awn-] / ˈɒnˈsaɪt, ˈɔn- /

Or on site

adjective

1. accomplished or located at the site of a particular activity or happening.

   Faculty, staff, and graduate students have two options for on-site childcare.

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adverb

1. on or at a particular site.

   They treated the wounded on-site before putting them on a helicopter for evacuation.

Etymology

Origin of on-site

First recorded in 1955–60

Example Sentences

No one was seriously hurt, but it had the potential to be catastrophic because of the presence of a highly toxic chemical on-site that can penetrate skin, officials said.

From Los Angeles Times • Jun. 6, 2026

Some of the power could be generated by a new on-site gas plant, and some will likely come from the state’s power grid, according to the project’s concept plan.

From Salon • Jun. 6, 2026

Bloom Energy’s on-site systems will be “behind-the-meter,” meaning they aren’t dependent on power from the larger electrical grid.

From Barron's • May 21, 2026

Parish, which has 350 employees and between 100 and 600 contractors on-site daily, is needed to support an overstretched power grid, he said.

From The Wall Street Journal • May 21, 2026

Their friend Jim Fitzgerald had agreed to meet them there, and he was probably already on-site, getting awesome sunrise pictures.

From "Mountain of Fire" by Rebecca E. F. Barone