IMPORTANT [I, T] › to think that something is important and to feel interested in it or worried about it: He cares deeply about the environment. [+ question word] I don't care how long it takes - just get the job done. LOVE [I] › to love someone: Your parents are only doing this because they care about you. I knew that Amy still cared for me. I/he, etc couldn't care less informal › used to emphasize that someone is not interested in or worried about something or someone: [+ question word] I couldn't care less what people think.
Who cares? informal › used to emphasize that you do not think something is important: "Manchester United will be in the final if they win this match." "Who cares?"
Would you care for sth/to do sth? formal › used to ask someone if they want something or want to do something: Would you care for a drink? Would you care to join us for dinner?