voluntourism
n.— «I first came across voluntourism when talking to the managing director of North-by North Tours, a company that specialises in tourism to Isan and neighbouring countries. Apparently they have the inside track on holidays dedicated to building a water supply for a village or perhaps tilling a field to make it ready for the next rice-planting season.» —“An emerging breed” by Don Ross Bangkok Post (Thailand) Sept. 8, 2005. (source: Double-Tongued Dictionary)
Further reading
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There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...