1
a
: ill health : illness
b
: a disordered, weakened, or unsound condition
2
: a specific disease
3
: nausea, queasiness
Examples of sickness in a Sentence
He died from an unknown sickness.
she was plagued by sickness most of her adult life
Recent Examples on the Web
Like absolutely everything in this movie, that sickness is repeated across the other parts of the story, as Thorn is wounded by a fall and Claire’s non-character of a mom falls ill from movie cancer.
—
David Ehrlich, IndieWire, 28 Jan. 2026
Local outlet Cape Argus reports the country’s National Institute for Communicable Diseases (NICD) was alerted and made aware of a potential sickness onboard.
—Colson Thayer, PEOPLE, 27 Jan. 2026
Washing sheets in hot water every time isn’t necessary for linens that are lightly soiled—think no sweaty nights or sickness.
—Karen Brewer Grossman, Southern Living, 22 Jan. 2026
Boost immunity with vitamin D 🤧 Vitamin C isn’t your only secret weapon against winter sickness.
—Abby Norman, Verywell Health, 21 Jan. 2026
See All Example Sentences for sickness
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David Ehrlich, IndieWire, 28 Jan. 2026
Local outlet Cape Argus reports the country’s National Institute for Communicable Diseases (NICD) was alerted and made aware of a potential sickness onboard.
—Colson Thayer, PEOPLE, 27 Jan. 2026
Washing sheets in hot water every time isn’t necessary for linens that are lightly soiled—think no sweaty nights or sickness.
—Karen Brewer Grossman, Southern Living, 22 Jan. 2026
Boost immunity with vitamin D 🤧 Vitamin C isn’t your only secret weapon against winter sickness.
—Abby Norman, Verywell Health, 21 Jan. 2026
See All Example Sentences for sickness
Cite this Entry
“Sickness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sickness. Accessed 1 Feb. 2026.
Copy CitationKids Definition
sickness
noun
sick·ness
ˈsik-nəs 
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