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memo (memorandum) –n. a short, written message or report form one person or department in a company or organization to another
hashtag –n. a word or phrase that starts with the symbol # and that shows what a message, such as a tweet, is about
insurgent –n. a person who fights against an established government
click –n. the act of choosing something on a computer screen by pressing a button on a mouse or some other device
