开业大吉 kāiyèdàjí good luck on the opening of a business Origin Definitions Defs Strokes Stroke Words Sentences Sents 开业 開業 kāiyè verb + noun to open for business To open a new business or professional practice, such as a shop, clinic, or firm; to begin trading or serving customers.大吉 dàjí very auspicious extremely lucky; very auspicious