What is the meaning of ?

Apothecary symbol for half.

Occasionally used in loanwords from German.

A ligature representing <ss> in italic text.

A letter in the German-based alphabet of Central Franconian.

Eszett (sz) or scharfes S, a German letter based on a ligature of ſ (long s) and z.

A letter formerly used to represent the sound /s/, now replaced by s.

A ligature representing <ss>.

Source: wiktionary.org