ninepinn. 
柱


木柱
ninepin[ noun ]a bowling pin of the type used in playing ninepins or (in England) skittles<noun.artifact> 
ninepin \ninepin\ n.
a bowling pin of the type used in {ninepins} (or (in England)
skittles).
Syn: skittle, skittle pin.
[WordNet 1.5]