What is the meaning of է?

The 7th letter of Armenian alphabet, called է (ē). Transliterated as ē. Represents an open-mid front unrounded vowel: [ɛ]. In Old Armenian it must have been a diphthong-like vowel [e(j)]

third-person singular present of եմ (em)

being, existence, something or someone that exists, onto-

God

third-person singular present active indicative of եմ (em)

being, existence, something or someone that exists

God

A letter of the Armeno-Turkish script, named է (e). Represents mid front unrounded vowel: [e]. Transliterated as e.

Source: wiktionary.org