五口通商 wǔkǒutōngshāng opening of the five treaty ports Origin Definitions Defs Strokes Stroke Words Sentences Sents 五 wǔ numeral five the number five; 5口 kǒu noun gateway entrance, exit, or pass, such as a mountain pass, port, or gate in the Great Wall通商 tōngshāng trade relations to engage in trade or have commercial relations, especially between different countries or regions; international trade