functioning Meaning, Definition & Usage

  1. noun process or manner of functioning or operating
    performance; operation.
    • the power of its engine determines its operation
    • the plane's operation in high winds
    • they compared the cooking performance of each oven
    • the jet's performance conformed to high standards
  2. verb perform as expected when applied
    function; go; work; run; operate.
    • The washing machine won't go unless it's plugged in
    • Does this old car still run well?
    • This old radio doesn't work anymore
  3. verb serve a purpose, role, or function
    function; serve.
    • The tree stump serves as a table
    • The female students served as a control group
    • This table would serve very well
    • His freedom served him well
    • The table functions as a desk
  4. verb perform duties attached to a particular office or place or function
    function; officiate.
    • His wife officiated as his private secretary
  5. adjective performing or able to perform its regular function
    • a functioning flashlight

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