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

The collection features 10 slim eyeglass and sunglass styles in pink, black and tortoise-shell colorways. — Madison Collins, Footwear News, 23 Oct. 2026

These chemicals are used to create a type of transparent and shatter-resistant plastic called polycarbonate, found in products including hard plastic water bottles, food storage containers and eyeglass lenses. — Sean McCann, The Conversation, 28 Sep. 2026

The grill, the propane tank, even her prescription eyeglasses. — Jenisha Watts, The Atlantic, 20 Sep. 2026

The store will have a CVS Pharmacy, a Starbucks, and a Target eyeglass store. — Emily Holshouser, Fort Worth Star-Telegram, 4 Sep. 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