expōsˈer noun

exposure /-pōˈzhər or -zhyər/ noun

1. The act of laying open or bare
2. Subjection to an influence
3. The harmful effects on the body of extreme cold
4. The act of allowing access of light, or a section of film, etc which has been exposed to light (photography)
5. The combination of duration of such access (shutter speed) with lens aperture chosen for the taking of a photograph
6. The act of showing up an evil
7. A state of being laid bare
8. Openness to danger
9. In finance, a vulnerable, overextended commitment or position
10. A shelterless state
11. Position with regard to the sun, influence of climate, etc
12. Appearance in public, esp on television
13. The total number of potential viewers, listeners, readers, etc of a particular advertising medium

exposure meter noun (photography)

An instrument, now often incorporated in the camera, for measuring the light falling on or reflected from a subject

expose oneself

To expose one's sexual organs in public