This is the 7842nd most frequent Japanese word.
商売
Business; trade; commerce.
商売 refers to business or trade as an activity, focusing on the knowledge or techniques involved.
商売の秘訣を教えてください。
Please teach me the secrets of business.
商売 is used here to mean 'business' or 'commerce' in a general sense, emphasizing skillfulness in managing such matters.
彼は商売がうまい。
He is skilled at business.
商売 is used to indicate the specific act of starting a business or engaging in commerce.