Caves
Warrens
Both words in one sentence
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Domed Hometown: Most of the Lunar settlements are underground caves and warrens, though one section of Luna City is referred to as "Old Dome," and is implied to be a large dome at or near the Moon's surface.
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Heinlein's The Moon Is a Harsh Mistress most of the Lunar settlements are underground caves and warrens, though one section of Luna City is referred to as "Old Dome," and is implied to be a large dome at or near the Moon's surface which the city outgrew.
Source: Domed Hometown -
Anachronism Stew Beneath the Earth: Underneath the Mad City is a system of caves, caverns, and twisting tunnels known as the Warrens.
Cite this Source
Warrens and Caves. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/caves/warrens
Caves & Warrens. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/caves/warrens>.
Warrens or Caves. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/caves/warrens.
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