ILL › ill: He was off work sick for most of last week. They provide care for the sick.
be sick › If you are sick, food and drink comes up from your stomach and out of your mouth: The baby was sick all down his shirt.
feel sick › to feel that the food or drink in your stomach might soon come up through your mouth: I was so nervous I felt quite sick.
be sick of sth informal › to be bored with or annoyed about something that has been happening for a long time: I'm sick of people telling me how to run my life.
It makes me sick. informal › something you say when you are jealous of someone: She looks fantastic whatever she wears - it makes me sick.
CRUEL › cruel and unpleasant: He's got a sick mind. a sick joke