miscount

/ˌmɪsˈkaʊnt/
verb
  1. To count something incorrectly; to make a mistake in counting.
    • If you miscount the votes, the election results could be wrong.
    • I miscount the number of guests and don't have enough chairs.
    • The cashier miscount the change and gave me too much money.
Antonyms
noun
  1. An incorrect count; a mistake in counting.
    • We discovered a miscount in the number of tickets sold.
    • The referee's miscount led to an extra round in the boxing match.
    • A miscount in the inventory caused a shortage of supplies.
Synonyms