1. (尤指外贸)商人，批发商
    A merchant is a person who buys or sells goods in large quantities, especially one who imports and exports them.

    e.g. Any knowledgeable wine merchant would be able to advise you.
           任何一个懂行的葡萄酒商人都可以给你提出建议。

2. 店主;商人
    A merchant is a person who owns or runs a shop, store, or other business.

merchant什么意思

    e.g. The family was forced to live on credit from local merchants.
           这家人不得不靠向当地商人赊账生活。

3. 海上货运的;商船的
    Merchant seamen or ships are involved in carrying goods for trade.

    e.g. There's been a big reduction in the size of the British merchant fleet in recent years.
           近些年来英国商船队伍的规模大为缩减。