An acronym is a type of abbreviation formed from the initial letters of a series of words. For example, the acronym NASA stands for the National Aeronautics and Space Administration. Acronyms are often used to simplify long names or phrases, making them easier to remember and communicate. Acronyms can be pronounced as words, like SCUBA (Self-Contained Underwater Breathing Apparatus), or as individual letters, like FBI (Federal Bureau of Investigation). They are commonly used in various fields, including technology, government, and education, to streamline communication and enhance clarity.