diagnose
verb (used with object)
to determine the identity of (a disease, illness, etc.) by a medical examination.
diagnosed
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past participleof diagnose.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
-
past tense formof diagnose.past tense
Used to describe completed actions or previous habitual actions.
diagnoseverb (used with object)to determine the identity of (a disease, illness, etc.) by a medical examination.
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.
Mageean, from Portaferry in Northern Ireland, was diagnosed with stage four bowel cancer in May 2025.
From BBC ● Nov. 1, 2026
After I was diagnosed a couple of years ago, I looked back at my youth and finally understood why I often struggled with friendships and relationships.
From The Wall Street Journal ● Nov. 1, 2026
She was subsequently diagnosed with colon cancer, and her breast cancer also returned in 2021.
From BBC ● Nov. 1, 2026
I was diagnosed in my 40s, by which point I was a high-functioning professional with a family and friends.
From The Wall Street Journal ● Nov. 1, 2026
My dad was diagnosed with a serious health problem and my life had to immediately change.
From "The Freedom Writers Diary" by The Freedom Writers
