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What does LO stand for?

LO stands for Locked Open

This definition appears frequently and is found in the following Acronym Finder categories:

  • Information technology (IT) and computers

See other definitions of LO

Other Resources:
We have 15 other meanings of LO in our Acronym Attic

Samples in periodicals archive:

If the hatches are open during operation, you must make sure they're locked open.
For customer Chad Ettmueller, an attempted bite into his favorite sandwich resulted in 14 hours with his jaw locked open, treatment at three different hospitals, and one sandwich he never got to eat.
Friction-lock and positive-lock technology help ensure the baton remains locked open while striking.
Because the article cites the Garand clip, I might point out that because the Garand is closed on the bottom, the last cartridge has to be fired, ejected and the action locked open before the clip is forcibly ejected out the top.