Click any word in a definition or example to find the entry for that word
He's been ill for a couple of weeks.
She was too ill to travel.
mentally ill patients
terminally ill (=going to die because of an illness)
Her husband is seriously ill in hospital.
She was unlucky enough to fall ill on holiday.
Samantha was seriously ill with a fever.
This is the British English definition of ill. View American English definition of ill.