1. Semantic difference: Dinner usually refers to the meal at the end of the day, which is an essential meal in family life; Dinner is dinner in the evening, usually at 8 pm or later; Dinner is a formal, official or business banquet, usually held in the evening.

2. The difference between social occasions: Dinner and dinner are generally enjoyed at home or in ordinary restaurants, while dinner is generally in high-end hotels or clubs, involving more formal and advanced social occasions.

3. Differences in dining environment: Dinner and dinner are generally eaten at home or in ordinary restaurants, and the environment is more casual; Dinner parties are usually held in hotels or clubs in a more formal and elegant environment.

4. Differences in the quality of dishes: Dinner dishes are usually richer, more refined and of higher quality.

In short, dinner, dinner and dinner are obviously different in semantics, social occasions, dining environment and food quality.