In general, the word "mean" can refer to the character or disposition of a person or thing. In the story, the prince is described as being "happy," which suggests that he is of a cheerful and positive nature.
The word "mean" can also refer to the purpose or intention of an action. In the story, the prince is motivated by a desire to help the people of his city who are less fortunate than he is. His actions, such as giving away his jewels and cloak, are therefore considered to be meaningful because they are done with a good intention.
Finally, the word "mean" can also refer to the significance or importance of something. In the story, the prince's actions are ultimately considered to be meaningful because they have a positive impact on the lives of the people he helps.
Overall, the word "mean" in the story "The Happy Prince" suggests that the prince is a kind and compassionate person who is motivated by a desire to help others. His actions are considered to be meaningful because they are done with a good intention and have a positive impact on the world around him.