noun, adverb
nature of one's business; business instinct
Refers to the character, habits, or instincts shaped by one's trade or profession. Often used in expressions like 商売柄～だ or 商売柄～で.
商売柄、人と話すのは慣れている。
Because of the nature of my business, I'm used to talking to people.
彼は商売柄、夜遅くまで働くことが
Due to his line of work, he often works late into the night.