Cha, or Čʼa (majuscule: Չ; minuscule: չ; Armenian: չա) is the twenty-fifth letter of the Armenian alphabet. It represents the voiceless postalveolar aspirated affricate (/t͡ʃʰ/) in both Eastern and Western varieties of Armenian. Created by Mesrop Mashtots in the 5th century, it has a numerical value of 700. Its shape in capital form is visually similar to one other Armenian letter, Sha (Շ). Its shape in lowercase form is also similar to the Latin letter Z (z).