plus Meaning, Definition & Usage

  1. noun a useful or valuable quality
    asset.
  2. noun the arithmetic operation of summing; calculating the sum of two or more numbers
    summation; addition.
    • the summation of four and three gives seven
    • four plus three equals seven
  3. adjective on the positive side or higher end of a scale
    • a plus value
    • temperature of plus 5 degrees
    • a grade of C plus
  4. adjective satellite involving advantage or good
    positive.
    • a plus (or positive) factor

WordNet

Plus adjective
Etymology
L., more; akin to Gr. , , and E. full. See Full, a., and cf. Più, Pleonasm.
Definitions
  1. (Math.) More, required to be added; positive, as distinguished from negative; -- opposed to minus.
  2. Hence, in a literary sense, additional; real; actual.
    Success goes invariably with a certain plus or positive power. Emerson.

Webster 1913