also: たかづか
noun
Refers to an ancient raised earthen burial structure, often from the Kofun period. Used in historical and archaeological contexts.
この地域には多くの高塚が残っている。
Many burial mounds remain in this region.
高塚古墳は5世
The Takatsuka tumulus is estimated to have been built in the 5th century.
古墳 is the general term for ancient burial mounds, especially large keyhole-shaped ones from the Kofun period. 高塚 specifically emphasizes the raised, mounded shape and can be used for smaller or less formal mounds.
Compound of 高 (taka, 'high') and 塚 (tsuka, 'mound'). The reading たかづか is a rendaku variant.