error

/ˈɛrər/
noun
  1. A mistake, especially one that causes problems or affects results.
    • She admitted her error and apologized for the confusion.
    • The computer displayed an error message when the file couldn't be opened.
    • There was an error in the calculation, so the total was wrong.
  2. The state or condition of being wrong in behavior or belief.
    • The young prince was led into error by his dishonest advisors.
    • To err is human, but persisting in error is foolish.
    • The teacher explained that the student's answer was in error.
  3. A failure in a computer program or system.
    • A syntax error in the code prevented the program from running.
    • The website returned a 404 error because the page was deleted.
    • The software update caused a system error that crashed the network.