An aperture is primarily defined as a hole or gap through which one can see. It is often used in photography and optics to refer to the opening that allows light to enter a camera or other optical device. The other definitions you provided do not accurately describe "aperture."
An aperture is..
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ornamentation or equipment that is part of a uniform.
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a hole or gap through which one can see.
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an addendum to original written material.
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a type of text structure.
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1 answer