function

/ˈfʌŋkʃən/
verb
  1. To work or operate in the correct way.
    • After the repair, the elevator began to function properly again.
    • The old computer still functions, but it's very slow.
    • Her brain functions well even when she is tired.
  2. To serve a particular purpose or role.
    • This room functions as both a living room and a dining area.
    • The spare key functions as a backup in case you lose the main one.
    • In the team, she functions as the leader and organizer.
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noun
  1. The purpose or job that something is designed to do.
    • The main function of a refrigerator is to keep food cold.
    • The function of the heart is to pump blood throughout the body.
    • Each button on the remote has a specific function.
  2. A formal social event or ceremony.
    • We're hosting a small function for my parents' anniversary.
    • The ambassador attended a charity function at the hotel.
    • The school held a function to honor the graduating students.
  3. In mathematics, a relationship between two sets where each input has exactly one output.
    • The function f(x) = x² gives the square of any number you input.
    • A function can be represented as a table, graph, or equation.
    • In algebra class, we learned how to graph a linear function.
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