What is beyond what is due, usual, expected, or necessary; additional; supernumerary; also, extraordinarily good; superior; as, extra work; extra pay. "By working extra hours." H. Spencer called?

extra — Beyond what is due, usual, expected, or necessary; additional; supernumerary; also, extraordinarily good; superior; as, extra work; extra pay. "By working extra hours." H. Spencer. (Webster's 1913.)

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