SICK definition: affected with ill health, disease, or illness; ailing. See examples of sick used in a sentence.

Ill and sick are both adjectives that mean ‘not in good health’. We use both ill and sick after a verb such as be, become, feel, look or seem: … It's better for the sick to be cared for at home …

Discover everything about the word "SICK" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

sick is an adjective, sickly and sickening are adjectives, sickness is a noun, sicken is a verb: He's very sick and can't come to work. The starving child looks so sickly.

Jan 4, 2026 · sick (comparative sicker, superlative sickest) She was sick all day with the flu. We have to care for the sick.

The meaning of SICK is affected with disease or ill health : ailing. How to use sick in a sentence.

Get access to documentation and support, check the status of your orders in real time and log in to digital services. There's one login for all: My SICK. Find answers to your questions about …