1. a sudden powerful forward or upward movement
2. a sudden large increase in something

1. to move suddenly and powerfully forward or upward
2. to increase suddenly by a large amount

Examples

• The crowd surged forward when the doors opened.
• There was a surge of excitement in the stadium.
• Oil prices experienced a sudden surge last month.
• The river surged over its banks during the storm.
• Sales surged after the new product launch.
• A surge of anger filled her when she heard the news.
• The stock market surged in early trading.