投行 tóuháng investment bank Origin Definitions Defs Strokes Stroke Words Sentences Sents 投 tóu verb abbreviation of 投资 投資 tóuzī to invest to put money, capital, or labor into a business or project in order to make a profit行 háng noun abbreviation of 银行 銀行 yínháng bank A financial institution that handles deposits, loans, currency exchange, and savings.