Frequency: The word is one of the 3000 most common words in English.
Exposure to something dangerous means being in a situation where it might affect you.
Exposure to lead is known to damage the brains of young children.
N-UNCOUNT: usu N to n
Exposure is the harmful effect on your body caused by very cold weather.
He was suffering from ~ and shock but his condition was said to be stable...
The ~ of a well-known person is the revealing of the fact that they are bad or immoral in some way.
...the ~ of Anthony Blunt as a former Soviet spy...
N-UNCOUNT: usu with poss
Exposure is publicity that a person, company, or product receives.
All the candidates have been getting an enormous amount of ~ on television and in the press.
In photography, an ~ is a single photograph. (TECHNICAL)
Larger drawings tend to require two or three ~s to cover them.
In photography, the ~ is the amount of light that is allowed to enter a camera when taking a photograph. (TECHNICAL)
Against a deep blue sky or dark storm-clouds, you may need to reduce the ~.