hamza

/ˈhæmzə/
noun
  1. A diacritical mark in Arabic script representing a glottal stop (a catch in the throat sound).
    • The word 'mas'ala' (question) is spelled with a hamza on the alif.
    • In Arabic writing, the hamza can appear above or below the letter alif.
    • When learning Arabic, students often struggle with where to place the hamza in a word.