<p><strong>Adjective:</strong></p><ul><li>affected with ill health, disease, or illness; ailing: She was sick with the flu for two weeks.</li><li>affected with nausea; inclined to vomit: If you feel sick, take a few deep breaths and wait for the feeling to pass.</li><li>deeply affected with some unpleasant feeling, as of sorrow, disgust, or boredom: The suffering and torments of the wounded make me sick at heart.</li><li>mentally, morally, or emotionally deranged, corrupt, or unsound: Only someone with a sick mind would suggest such an immoral scheme.</li><li>dwelling on or obsessed with that which is gruesome, sadistic, ghoulish, or the like; morbid: sick jokes.</li><li>of, relating to, or for use during ill health: He applied for sick benefits.</li><li>accompanied by or suggestive of ill health; sickly: a sick pallor; the sick smell of disinfectant in the corridors.</li><li>disgusted; chagrined: Such blatant hypocrisy makes me sick.</li><li>not in proper condition; impaired: My car is sick and I'm afraid it's going to cost a lot of money to repair.</li><li>Slang: great; amazing: The plot is boring but the special effects are sick!</li><li>Agriculture: failing to sustain adequate harvests of some crop, usually specified: a wheat-sick soil.</li><li>containing harmful microorganisms: a sick field.</li><li>Now Rare: Sometimes Offensive: menstruating.</li></ul><p><strong>Noun:</strong></p><ul><li>(used with a plural verb) people in ill health collectively: We have a duty of care toward the sick.</li></ul>