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Synonyms

knee-high

American  
[nee-hahy, nee-hahy] / ˈniˈhaɪ, ˈniˌhaɪ /

adjective

  1. as high as the knees.

noun

  1. knee-highs. Also knee highs, knee-hi's, knee his socks, stockings, or boots that cover the lower legs to just below the knees.

knee-high British  

adjective

  1. another word for knee-deep

  2. as high as the knee

    a knee-high child
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of knee-high

An Americanism dating back to 1735–45

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In Nyakach, in the west, children walked through knee-high water and residents scooped water from inundated houses -- though some were submerged up to the roof.

From Barron's • Mar. 22, 2026

The hosts could have been reduced to 10 men inside the first 10 minutes when full-back Dalot caught Jeremy Doku in a knee-high challenge with his studs.

From BBC • Jan. 17, 2026

Swift took the stage in a black minidress and knee-high black boots.

From Los Angeles Times • Jun. 25, 2025

With one out and nobody on base, Padres starter Randy Vásquez threw an inside, knee-high heater for ball one, brushing Ohtani back off the plate.

From Los Angeles Times • Jun. 18, 2025

So stupid as I sit shivering here in this cellar, tallying up our losses, fingering the tassels on the silver knee-high boots I stole from the woman’s home.

From "Mockingjay" by Suzanne Collins

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.