business; occupation; work activities
A somewhat formal noun referring to one's work, business, or professional activities. Often used in written or formal contexts.
He is busy with his daily work.
The company's business activities cover a wide range.
Compound of 営 (ei, 'manage, conduct') and 為 (i, 'do, act'). The exact historical derivation is uncertain, but the word has been used in formal writing to denote one's work or business activities.