How do you off?

move the mouse or press a key on the keyboard, or if it's a laptop, press the power button.

Hyphenated is preferred- to minimize confusion. an off-work accident, for example.

There are many approaches that can be used on a rounded nut or bolt. Many of them depend on the access you have to the nut. If you have easy access you can try using Vice grips, a pipe wrench, or a...

You have gotten so used to the swaying on the boat that your balance center is not used to the stillness of land again. It's like being seasick, but on land. But it should pass quickly.