刀枪不入 dāoqiāngbùrù invulnerable Origin Definitions Defs Strokes Stroke Words Sentences Sents 刀枪 刀槍 dāoqiāng weapons sword and spear; ancient weapons in general不 bu particle [potential] Used between a verb and its result to show that the action cannot achieve that result; used as the negative form of the 得 de potential construction入 rù verbparticle to enter to enter; to go into; to move from outside to inside