osteoarthritis
noun/ˌɒstioʊɑrˈθraɪtɪs/
Frequency rank: #16,314 most common English word
Meaning
A degenerative joint disease in which cartilage breaks down, causing pain and stiffness.

Example sentence
After years of running, he was diagnosed with osteoarthritis in both knees.
Synonyms & related words
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