rook¹

vi. & vt.

rook²

（国际象棋中的）车
Chess champions must know how to use their rooks effectively.
象棋冠军一定知道如何好好地用他的车。

以上来源于：《英汉大辞典》

a gregarious crow with black plumage and a bare face, nesting in colonies in treetops. [Corvus frugilegus.]

informal defraud, swindle, or overcharge.

OE hrōc, prob. imitative and of Gmc origin.

a chess piece, typically with its top in the shape of a battlement, that can move in any direction along a rank or file on which it stands.

ME: from OFr. rock, based on Arab. ruḵḵ (of which the sense remains uncertain).

以上来源于：《简明牛津英语词典》