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Definition of ill noun from the Oxford Advanced Learner's Dictionary

ill

noun
 
/ɪl/
 
/ɪl/
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  1. [plural] people who are ill
    • Even the seriously ill cannot get tests done immediately.
  2. [usually plural] (formal) a problem or harmful thing; an illness
    • social/economic ills
    • the ills of the modern world
  3. [uncountable] (literary) harm; bad luck
    • I may not like him, but I wish him no ill.
  4. Word OriginMiddle English (in the senses ‘wicked’, ‘malevolent’, ‘harmful’, and ‘difficult’): from Old Norse illr ‘evil, difficult’, of unknown origin.
See ill in the Oxford Advanced American DictionarySee ill in the Oxford Learner's Dictionary of Academic English
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adverb
 
 
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