aperture

noun
UK: /ˈæpətʃʊə(r)/
US: /ˈæpərtʃər/

  1. A hole or opening through which light travels.

    1. The camera has a small aperture for taking photos. [ ] [ ]
    2. The telescope's large aperture allowed astronomers to view distant galaxies with greater clarity. [ ] [ ]

  2. An opening that controls the amount of light admitted.

    1. Adjust the aperture to get a brighter picture during darkness. [ ] [ ]
    2. By widening the aperture, the photographer achieved a shallow depth of field effect. [ ] [ ]

  3. In optics, the diameter of the entrance pupil of an optical system.

    1. The lens has an aperture of f/2.8. [ ] [ ]
    2. A larger aperture setting increases the amount of light reaching the camera's sensor. [ ] [ ]

Synonyms

hole gap opening orifice

Frequently Asked Questions

The word "aperture" in English means: A hole or opening through which light travels., An opening that controls the amount of light admitted., In optics, the diameter of the entrance pupil of an optical system..

The phonetic transcription of "aperture" is /ˈæpətʃʊə(r)/ in British English and /ˈæpərtʃər/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "aperture": hole, gap, opening, orifice.

Example usage of "aperture": "The camera has a small aperture for taking photos.". More examples on the page.