A mound-like or hemispherical structure containing relics (typically the remains of monks or nuns) nad used as a place of meditation.

A related architectural term is a chaitya, which is a prayer hall or temple containing a stupa.

( th: chedi เจดีย์ , stupa สถูป | pi: thūpa, cetiya | sa: stupa स्तूप | bo: chor ten མཆོད་རྟེན་ | ja: sharitō 舎利塔 | zh: shèlìtǎ 舍利塔 )
(The english word “pagoda” means more like a structure that can be entered, and which may be secular in purpose.)