一口商い[hitokuchiakinai] an immediate definite deal
一文商い[ichimonakinai] (a) penny store
卸し商[oroshishou] wholesaler
華商[kashou] Chinese merchants abroad
画商[gashou] picture dealer

会商[kaishou] negotiation
海商法[kaishouhou] maritime law
関連商品[kanrenshouhin] related product
客商売[kyakushoubai] hotel
巨商[kyoshou] wealthy merchant

河港[kakou] river port
海港[kaikou] port
開港[kaikou] open port
寄港[kikou] stopping at a port
漁港[gyokou] fishing harbour

空港[kuukou] airport
軍港[gunkou] naval port
港口[koukou] harbor entrance
港町[minatomachi] port city