攻

to attack / to accuse / to study

work / worker / skill / profession / trade / craft / labor

variant of 攴[pu1]

to specialize in / to major in

main assault / to focus on / to specialize in / to major in

to cure ills with poison (TCM) / to fight evil with evil / set a thief to catch a thief / to fight fire with fire

(of a rumor etc) to collapse (in the light of facts etc) / to be discredited

lit. use sb's spear to attack his shield (idiom, derived from Han Feizi 韓非子|韩非子); turning a weapon against its owner / fig. to attack an opponent using his own devices / hoist with his own petard

total football (soccer)

to catch an enemy off guard with a surprise attack (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3])

to attack jointly

to attack for a long time without success

personal attack

lit. the other mountain's stone can polish jade (idiom); to improve oneself by accepting criticism from outside / to borrow talent from abroad to develop the nation effectively