round off
Verb

round off

  1. To change the shape of (an object) to make it more circular.
  2. (mathematics) To change a number into an approximation having fewer significant digits.
    Round off 15.4 to 15, round off 15.51 to 15.5 or to 16, round off 0.499 to 0, and round off 970,000 to 1 million.
    "This product contains no PCBs" is a typical commercial distortion if it actually contains 0.498 of the measurement unit, rounded off to "0"
  3. To complete or finish something.
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