well up (verb)

1. As the emotional climax of the episode, tears welled up in the eyes of the animated character, expressing their deep sadness.

2. The comedian's funny punchline was so hilarious that laughter welled up from the audience.

3. In the futuristic world depicted in the novel, artificial intelligence gained emotions and tears welled up in the eyes of the android.

4. When the news of the allied victory reached the town, a sense of overwhelming joy welled up among the citizens, marking a significant moment in history.