noun - a person or a thing that is as different as possible from something or somebody else

noun - a person or group of people that you fight or compete against

verb - to carry out a medical procedure on a person's body using various instruments

verb - to do an activity involving many things and people

noun - somebody's thought or thoughts about something

noun - a medical procedure done on a person's body using various instruments

noun - an activity involving many things and people (such as a business etc.)

pronoun - somebody

noun - a kind of sticky substance that is rubbed on the skin in order to heal it

noun - a person who makes pictures, usually by using brushes and paints

noun - a Latin-American country with the capital Lima

verb - to act

noun - the study of ideas, the meaning of life, the nature of existence and reality etc.

noun, British English - a private school

noun - a serious disease that kills many people