商是什么？

商 [shāng]A动
1
（商量） discuss; consult
discuss with sb. face to face; consult personally;
面商
consult; talk things over;
协商
I have important matters to discuss with you.
有要事相商。
B
名
1
（商业） trade; commerce; business
engage in trade; be in business;
经商
have trade relations
通商
2
（商人） merchant; trader; businessman; dealer
profiteer; unscrupulous merchant;
奸商
retailer;
零售商
wholesaler;
批发商
foreign merchants;
外商
salt dealer
盐商
3
[数] （除法运算的得数） quotient
differential quotient
微商
4
[音] （古代五音之一， 相当于简谱的“2”） a note of the ancient Chinese five-tone scale, corresponding to 2 in numbered musical notation
5
（朝代） the Shang Dynasty (c. 16th-11th B.C.)
6
（姓氏） a surname
Shang Yang
商鞅

新华字典有解释。

：商：是生意