(~es)
Frequency: The word is one of the 3000 most common words in English.
1.
A ~ is a thin curved piece of glass or plastic used in things such as cameras, telescopes, and pairs of glasses. You look through a ~ in order to make things look larger, smaller, or clearer.
...a camera ~...
I packed your sunglasses with the green ~es.
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2.
In your eye, the ~ is the part behind the pupil that focuses light and helps you to see clearly.
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3.
see also contact ~ , telephoto ~ , wide-angle ~ , zoom ~