词根:point, punct = point, make sharp, 表示“点, 变尖”
pointed a. 尖的,成尖状的(point+ed)
pointer n. 指针;批示者(point+et→尖的东西→指针)
appoint v. 任命,指派(ap加强动作+point→指定某人)
disappoint v. 使失望;受挫折(dis不+appoint→不[被]指派→失望)
acupuncture n. 针灸(acu尖+punct+ure→用针尖点→针灸)
punctual a. 准时的(punct+ual→到点上→准点的)
punctuality n. 守时(punctual+ity)
puncture v. 穿孔,刺穿(punct+ure→点[进去]→刺穿)
punctilious a. 谨小慎微的(punct+ilious→[做事]点滴不漏→小心的)
compunction n. 后悔,悔恨(com共同+punct+ion→浑身像针刺一样→悔恨)
punctuate v. 加标点(punct+uate→加上点→加标点)
punch v. 打洞(punch→punct的变体)
pungent a. 刺鼻的;尖锐的(pung[=punct]+ent→尖的→尖锐的)