eyeglass

noun

eye·​glass ˈī-ˌglas 

1

a

: eyepiece

b

: a lens worn to aid vision

specifically : monocle

c

eyeglasses plural : a device used to correct defects of vision or to protect the eyes that consists typically of a pair of glass or plastic lenses and the frame by which they are held in place : glasses

2

: eyecup sense 1

Synonyms of eyeglass

• sunglasses
• glass
• spectacles

Examples of eyeglass in a Sentence

She left her eyeglasses at work.

Recent Examples on the Web

That conversion system was then fitted into a pair of lightweight, 23-gram (about half an ounce) eyeglasses. — Mack Degeurin, Popular Science, 6 Aug. 2026

Meanwhile, Karina has been the face of campaigns for luxury beauty, tourism, alcohol, footwear, food and beverages, coffeehouses, professional sports, sportswear, jewelry, technology, automobiles, eyeglasses, sunglasses, dolls and more. — Jeff Benjamin, Forbes.com, 6 Aug. 2026

That may change now that the findings show a return of up to $23 for every dollar invested over the typical two-year life of a pair of eyeglasses. — Jasmin Malik Chua, Footwear News, 31 July 2026

Leatherman rounds out the Adapter kit with a slim eyeglass screwdriver and ballpoint pen cartridge that slide into slots on the outside of the handle. — New Atlas, 21 July 2026

Word History

First Known Use

1593, in the meaning defined at sense 1c

Rhymes for eyeglass

• fiberglass
• fibreglass
• hourglass
• isinglass
• lemongrass
• martinmas
• orchardgrass
• overpass
• plexiglas
• plexiglass
• sassafras
• superclass

Kids Definition

eyeglass

noun

eye·​glass -ˌglas 

1

: a glass lens used to help one see clearly

2

plural : glass entry 1 sense 2b

Medical Definition

eyeglass

noun

eye·​glass ˈī-ˌglas 

1

a

: eyepiece

b

: a lens worn to aid vision

specifically : monocle

c

eyeglasses plural : glasses, spectacles

2

: eyecup sense 1