noun - a small elastic ball that will bounce when it hits a hard surface

noun - the possible effect that an action or a decision will have on something

noun - the act of entering a country etc. against the will of its inhabitants

noun - the word that you will do something, one which people can rely on

noun - the likelihood that something or someone someone will behave in a particular way

noun - the part of the river where the river flows very fast because it is going over rocks

noun - a loud noise and a release of energy caused by a bomb going off, a volcano etc.

noun - something that makes you reject something or someone, something that prevents you from going ahead with something

verb, British English, formal - to give a formal warning to somebody (especially one that says that the next time they do something wrong or illegal, they will be punished)

noun, informal - a complete and detailed practice of something that is done to make sure the real thing will work or run smoothly

noun, informal - a complete and detailed practice of something that is done to make sure the real thing will work or run smoothly

phrase - a saying used when someone wants to say that an event or activity will be more entertaining if more people come