1. (verb) cover up with a liquid correction fluid

• white out

2. (verb) lose daylight visibility in heavy fog, snow, or rain

• white-out

1. (noun) an arctic atmospheric condition with clouds over snow produce a uniform whiteness and objects are difficult to see; occurs when the light reflected off the snow equals the light coming through the clouds

• snow
• snowfall

2. (verb) cover up with a liquid correction fluid

• cover

3. (verb) lose daylight visibility in heavy fog, snow, or rain

• lose