1
a
b
: an unhealthy condition of body or mind
2
Examples of illness in a Sentence
Her body was not able to defend itself against illness.
Hundreds of soldiers died from illness and hunger.
He showed no signs of illness.
Scientists have not yet found a cure for this illness.
cancer, diabetes, and other illnesses
She died at the age of 60 after a brief illness.
Recent Examples on the Web
Samuel aspires to become an infectious disease physician-scientist and minority health advocate, researching illnesses that disproportionately affect Native Americans and other minority groups.
—
Victor A. Lopez-Carmen, Md, Forbes, 23 Mar. 2025
Doctors have said his voice has been weakened by his illness.
—Danielle Wallace, Fox News, 23 Mar. 2025
According to the 41-year-old and his wife Jessica, their son Miller died after a sudden illness while on vacation.
—Jacob Lev, CNN, 23 Mar. 2025
Fall is when a lot of seasonal illnesses start going around.
—Elizabeth Medeiros, Health, 22 Mar. 2025
See All Example Sentences for illness
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Victor A. Lopez-Carmen, Md, Forbes, 23 Mar. 2025
Doctors have said his voice has been weakened by his illness.
—Danielle Wallace, Fox News, 23 Mar. 2025
According to the 41-year-old and his wife Jessica, their son Miller died after a sudden illness while on vacation.
—Jacob Lev, CNN, 23 Mar. 2025
Fall is when a lot of seasonal illnesses start going around.
—Elizabeth Medeiros, Health, 22 Mar. 2025
See All Example Sentences for illness
Cite this Entry
“Illness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/illness. Accessed 28 Mar. 2025.
Copy CitationKids Definition
illness
noun
ill·ness
ˈil-nəs 
1
: an unhealthy condition of body or mind
2
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