slip-up

The definition of a slip up is a mistake or error.

(noun)

An example of a slip up is when you mix up numbers in a report you are writing and write "12" when the number should be "21."

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See slip-up in Webster's New World College Dictionary

noun

  1. an error or oversight
  2. an unlucky happening; mishap
Also written slipup

See slip-up in American Heritage Dictionary 4

noun
An error; an oversight.

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