noun - a painful spot on your lip caused by a virus

noun - a person who performs dangerous actions instead of an actor in a film

verb, formal - to affect someone or something in an unpleasant way

noun - the ability to continue for a long time

noun - a stream or river that flows into a larger river or lake

noun - a large electronic screen connected to a computer, you can write on it, it is used for teaching in a classroom

verb, informal - to steal something quickly and quietly

verb, informal - to secretly tell someone in authority about something wrong that another person has done

noun, informal - a person who secretly tells someone in authority about something wrong that another person has done

noun - an act of walking in a proud way with your head up and chest out, as if you are very important

noun - a piece of wood or metal that helps to hold something, such as a building or a vehicle

verb - to walk in a proud way with your head up and chest out, as if you are very important

noun, dated - a member of the same political group, especially a communist or socialist party

noun, dated - a friend, especially one with whom you share a difficult or dangerous situation

noun - a situation in which there is not enough of something for the people who need it or want it.