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Added 9 October 2026

aperture

/ˈap.ə.t͡ʃə/ noun

In Latin: apertūra Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about aperture at Wordnik → Where our words come from →

A device that controls amount of light admitted.
A natural opening in something.
An man-made opening; usually small.

Origin

From late Middle English, from Latin apertūra (“an opening”), from aperiō (“to uncover, make or lay bare”) + -tūra (“-ure”, action noun suffix). Doublet of overture and apertura.

From Wiktionary, via Kaikki.org (CC BY-SA)

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