English

Noun

sunglass

1. Singular form of sunglasses; used chiefly in compounds

   a sunglass holder

   • 2009, January 8, “Mike Albo”, in Of-the-Moment, Yet So Five Months Ago:

     They trekked through Europe, discovering designers like Melinda Gloss and the Italian sunglass manufacturer LGR, with whom they secured exclusive United States representation.

Noun

sunglass ‎(plural sunglasses)

1. (archaic) A convex lens of glass for producing heat by converging the sun's rays into a focus.

   Lighting a cigar with a sunglass — Hawthorne.