What is "thalwil"

Thalwil is a municipality and town in the district of Horgen in the canton of Zürich in Switzerland. As of 2010 its population was of 17,189. Besides the town of Thalwil, the municipality includes the village of Gattikon.

The official language of Thalwil is (the Swiss variety of Standard) German, but the main spoken language is the local variant of the Alemannic Swiss German dialect.