高騰こうとう Common Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb sharp rise (in prices);steep rise;substantial increase;soaring この政策は結局物価の高騰を引き起こした。 This policy resulted in a great rise in prices. Other forms 昂騰 【こうとう】 (rarely used kanji form)