What is the meaning of ŋ?

The letter eng.

a voiced velar nasal.

[ŋ]-prenasalization, [ŋ]-release or post-nasalization, [ŋ]-coloring or a weak, fleeting or epenthetic [ŋ].

A letter of the Avokaya alphabet.

A letter of the Dagbani alphabet.

The eighteenth letter of the Inari Sami alphabet, written in the Latin script.

A letter of the Inupiaq alphabet, written in the Latin script.

indicates nasalization of the previous vowel.

Rare spelling of ng.

A letter of the Nuu-chah-nulth alphabet.

A letter of the Nuer alphabet, written in the Latin script.

The twenty-third letter of the Skolt Sami alphabet, written in the Latin script.

A letter of the Tuareg alphabet, written in the Latin script.

A letter of the Ewe alphabet.

A letter of the Fula alphabet, written in the Latin script.

The eighteenth letter of the Northern Sami alphabet, written in the Latin script.

Source: wiktionary.org