What is the meaning of š?

a voiceless postalveolar fricative (IPA [ʃ]).

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

The thirtieth letter of the Czech alphabet, written in the Latin script.

lake

garden with a pool

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

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

The thirty-sixth letter of the Lushootseed alphabet.

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

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

The twentieth letter of the Estonian alphabet, called šaa and written in the Latin script.

A letter of the Finnish alphabet, called hattu-s or suhu-s and written in the Latin script.

The twenty-seventh letter of the Latvian alphabet, called and written in the Latin script.

The twenty-fifth letter of the Lithuanian alphabet, called and written in the Latin script.

Euphemistic form of šūdas.

The twenty-sixth letter of the Lower Sorbian alphabet, called and written in the Latin script.

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

The twenty-sixth letter of the Romani alphabet, written in the Latin script.

The 25th letter of the Serbo-Croatian Latin alphabet (gajica), preceded by s and followed by t.

The thirty-fifth letter of the Slovak alphabet, written in the Latin script.

The letter of the Tswana alphabet, written in the Latin script.

Source: wiktionary.org