What is the meaning of ʒ?

a voiced palatoalveolar sibilant.

[ʒ]-fricated release of a plosive (e.g. [dᶾ], sometimes implying an affricate [d͡ʒ]); [ʒ]-coloring; or a weak, fleeting or epenthetic [ʒ].

voiced alveolar affricate (/dz/)

A d-z affricate (IPA [d͡z])

drachm, dram.

cinnabar

A letter of the Dagbani alphabet.

The sixth letter of the Skolt Sami alphabet, written in the Latin script.

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

The thirty-second letter of the Romani alphabet, written in the Latin script.

Source: wiktionary.org