Find the word definition

Wiktionary
transition town

n. (context UK Ireland English) a town in the British Isles that is a member of the Transition Towns movement and is striving to develop a higher standard of living and an environmentally friendly future.

Wikipedia
Transition town

The terms transition town, transition initiative and transition model refer to grassroot community projects that aim to increase self-sufficiency to reduce the potential effects of peak oil, climate destruction, and economic instability. The Transition Network, founded in 2006, inspired the creation of many of the projects. A number of the groups have officially registered with the organisation. The first initiative to use the name was Transition Town Totnes, located in the United Kingdom. Transition initiatives have been started in locations around the world, with many located in the United Kingdom, Europe, North America and Australia.