1. Noun
The act of opening.
2. Noun
An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.
3. Noun
The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
4. Noun
an man-made opening; usually small
Vocabulary classified under Art and design
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