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Word of the Day Tuesday, June 9, 2026

aperture

/ˈæpərtʃər/ noun · British & US
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What does aperture mean?

noun

The opening or gap in a camera lens that controls the amount of light that enters the camera, or a measure of the size of this opening, expressed as an f-number. In photography, aperture is a key component of exposure, along with shutter speed and ISO.

Example

"The photographer adjusted the aperture to capture the perfect shot of the sunset."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for aperture

Antonyms of aperture

Rhymes with aperture

Etymologically related