What is the meaning of ع?

The nineteenth letter of the Acehnese alphabet, written in the Arabic script.

The eighteenth letter of the Arabic alphabet, written in the Arabic script; preceded by ظ (ẓ) and followed by غ (ḡ).

Z, unknown variable.

The sixteenth numeral symbol of the Arabic alphabet (traditional abjad order, used for list numbering), written in the Arabic script; preceded by س (s) and followed by ف (f).

second-person masculine singular imperative of وَعَى (waʕā)

The thirty-first letter of the Balti alphabet, written in the Arabic script.

The thirty-first letter of the Burushaski alphabet, written in the Arabic script.

The thirty-first letter of the Khowar alphabet, written in the Arabic script; preceded by ظ and followed by غ.

A letter of the Kyrgyz alphabet, written in the Arabic script.

alternative form of عَلَى (ʕala)

A letter of the Old Ruthenian alphabet, written in the Arabic script.

alternative form of على (ʕala)

The twenty-fourth letter of the Xiao'erjing abjad, written in the Arabic script.

see على

The twenty-ninth letter of the Kashmiri alphabet, written in the Arabic script; preceded by ظ (z) and followed by غ.

The thirteenth letter of the Kazakh alphabet, written in the Arabic script; preceded by ش and followed by ف.

The nineteenth letter of the Malay alphabet, written in the Arabic script.

The twenty-eighth letter of the Pashto alphabet, written in the Arabic script; preceded by ظ and followed by غ.

The twenty-first letter of the Persian alphabet, called عین and written in the Arabic script; preceded by ظ and followed by غ.

The twenty-fourth letter of the Punjabi alphabet, written in the Shahmukhi script; preceded by ظ (z̤ōē) and followed by غ (ġain).

The thirty-fifth letter of the Sindhi alphabet, written in the Arabic script; preceded by ظ and followed by غ.

The twenty-fourth letter of the Urdu alphabet, written in the Arabic script; preceded by ظ and followed by غ.

Source: wiktionary.org