eyelet

(īˈlĭt)

1. a. A small hole or perforation, usually rimmed with metal, cord, fabric, or leather, used for fastening with a cord or hook.
   b. A metal ring designed to reinforce such a hole; a grommet.
2. A small hole edged with embroidered stitches as part of a design.
3. A peephole.
4. A small eye.

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eyelet