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Synonyms

sickness

American  
[sik-nis] / ˈsɪk nɪs /

noun

  1. a particular disease or malady.

  2. the state or an instance of being sick; illness.

  3. nausea; queasiness.


sickness British  
/ ˈsɪknɪs /

noun

  1. an illness or disease

  2. nausea or queasiness

  3. the state or an instance of being sick

"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 sickness

before 1000; Middle English siknesse, seknesse, Old English sēocnesse. See sick 1, -ness

Compare meaning

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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.

She is traveling by train to an unnamed city for a book festival, where she will be expected to speak with authority about the war—an assumed connection that fills her with sickness and shame.

From The Wall Street Journal • Mar. 26, 2026

One version of the molecule helped treat morning sickness in pregnant women, while its mirror image caused serious birth defects.

From Science Daily • Mar. 21, 2026

Those triumphs were not exactly foregone conclusions given the travel sickness Howe's team previously suffered with.

From BBC • Mar. 14, 2026

Still, here’s one that those with a propensity to motion sickness may want to take a pass on.

From Los Angeles Times • Mar. 6, 2026

A wave of sickness overtook Seven, and she took in a deep breath of crisp, cold air to keep from being ill.

From "Witchlings" by Claribel A. Ortega