Begins is the third person singular present tense of the verb "begin", meaning to start doing something or to come into existence.
Common usage examples:
1. The movie begins at 8 pm.
2. Spring begins in March in the Northern Hemisphere.
3. Her headache begins to fade after taking the medicine.
Idiomatic expressions with "begin":
- Begin with: 从...开始
- To begin with: 首先
- Begin the world: 踏入社会