掐 (w)

(qiā) to pick (flowers); to pinch; to nip; to pinch off; to clutch; (slang) to fight

掐断 (w)

(qiāduàn) cut off; disconnect

掐死 (w)

(qiāsǐ) to throttle; to strangle

掐算 (w)

(qiāsuàn) to count with one's fingers; on the spot calculation