The term up in the air means to be undecided about something or someone. Example: The plans for the wedding are up in the air as she isn't talking to me at the moment.
When a physician uses the term air in the appendix, it does not mean you have air in your appendix. It basically means that there is an infection in your appendix.
Special Air Services.
"The skies opened up" usually means "It began to rain or snow heavily," as if the precipitation had been locked up in the air. But it could also mean "The clouds separated, revealing lots of blue sky."
Mac book air = mba
up in the air
to light up...
it means that it is a flying device that is lighter than air.
It just means "melody". http://popularmusichistory.com/
The correct term for an air hoister is just air hoist. An air hoist is a pneumatic hoist, which means it is operated by pressurized air or gas.
It can mean to become unconscious. It was also a term generally used in the UK during air raids in WW11, which meant to cover all lights, windows (with curtains for example) so that German bombers did not have a target lighted up that could be seen from the air.
To roll (a cannabis cigarette) is the meaning to the British term to skin up.
1. Something is floating up in the air 2. Something is indefinite or undetermined