拱墩

pillar of a vault

gǒng = gu + (e)ng3

to cup one's hands in salute / to surround / to arch / to dig earth with the snout / arched

du̅n = du + (e)n1

block / gate pillar / pier / classifier for clusters of plants / classifier for rounds in a card game: trick / (archaic) watchtower

du̅n = du + (e)n1

old variant of 墩[dun1]

拱墩 is not used as a component in another word.

拱墩 currently does not appear in any sentence.