US, of a bed : having dimensions of 39 by 75 inches (about 1.0 by 1.9 meters)
also : of a size that fits a twin-size bed
twin-size sheets
compare full-size, king-size, queen-size

Examples of twin-size in a Sentence

Recent Examples on the Web There are plenty of plush pillows (upwards of eight or so on a twin-size bed), furry carpets, and even musical vinyl hung onto the walls. Isiah Magsino, Town & Country, 3 Aug. 2023 There's even a secret passage behind one of the bathrooms that leads to a guest loft with a twin-size bed — perfect for kids. Stacey Leasca, Travel + Leisure, 28 July 2023 No other bedding is needed, and don't try to make a twin-size bed sheet fit around the little crib mattress. Jessica Hartshorn,, 9 May 2023 The Lookout: Inside the lookout are a twin-size bed and several extra floor mattresses. David Gladish, Outside Online, 31 Jan. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'twin-size.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


twin bed

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of twin-size was in 1926

Dictionary Entries Near twin-size

Cite this Entry

“Twin-size.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2023.

Kids Definition


: having a size of 39 inches by 75 inches (about 1.0 by 1.9 meters)
a twin-size bed
Last Updated: - Updated example sentences
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