Correct
墩
/ dūn /
Strokes
Definition
block/gate pillar/pier/classifier for clusters of plants/classifier for rounds in a card game: trick/(archaic) watchtower
Example
As a Noun
mound
1
Tǔdūn
土墩
mound
As a Noun
block of stone/wood
2
Shídūn
石墩
stone block for sitting
As a Noun
sitting block; stool in the shape of a drum or a cube
As a Verb
mop (the floor, etc)
As a Measure word
cluster