くさび
kusabi

Noun

1. wedge; chock; linchpin; lynchpin

Usually Written in Kana
ねじ、てこ、くさび、滑車 かっしゃなどは単一 たんいつ機械 きかい ばれる。
neji teko kusabi kasshanadowa tan'itsu kikaito yobareru.
The screw, the lever, the wedge, the pulley, etc. are called simple machines.
Noun

2. tie; bond

Usually Written in Kana
Other forms: