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English definition of “illness”

illness

noun     /ˈɪlnəs/
DISEASE [C] B1 a disease of the body or mind : a serious / terminal illness He died at the age of 83 after a long illness.Not fit and healthyThin or slender (of people)Disease and illness - general words
BEING ILL [U] B2 the state of being ill : Unfortunately I couldn't go because of illness.Not fit and healthyThin or slender (of people)Disease and illness - general words
(Definition of illness noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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