Ayin definition

īĭn

The 16th letter of the Hebrew alphabet.

noun

The sixteenth letter of the Hebrew alphabet (ע)

noun

The sixteenth letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others).

noun

Origin of ayin

Hebrew ‘ayin eye, ayin ʕyn in Semitic roots

From American Heritage Dictionary of the English Language, 5th Edition
From Proto-Semitic *ʿayn- (“eye”).

From Wiktionary