invasion

Universal Words noun [C,U] 1 the act of an army entering another country by force in order to take control of it: the Russian invasion of Czechoslovakia in 1968 * the threat of invasion * an invasion force / fleet 2 the fact of a large number of people or things arriving somewhere, especially people or things that are disturbing or unpleasant: the annual tourist invasion * Farmers are struggling to cope with an invasion of slugs. 3 an act or a process that affects sb/sth in a way that is not welcome: The actress described the photographs of her as an invasion of privacy. seealsoINVADE