斩 zhǎn — behead; chop
“快刀斩乱麻”比喻办事果断利落。“Kuài dāo zhǎn luàn má” bǐ yù bàn shì guǒ duàn lì luo.The phrase cutting tangled hemp with a sharp knife means handling matters decisively.
Common words: 斩钉截铁 (zhǎn dīng jié tiě)、斩草除根 (zhǎn cǎo chú gēn)、斩眼 (zhǎn yǎn)