What is capture group in regex?

Related questions

1. What do curly braces mean in regex?
2. What is pcre2?
3. How do you escape a period in regex?
4. What is B in python regex?
5. What is a dot in regex?
6. What does brackets mean in regex?
7. What does a dot mean in regex?
8. What are regular expressions used for?
9. What is regex word boundary?
10. What is question mark in regex?

Tags

1. #parentheses
2. #capture
3. #capturing
4. #group
5. #escaped
6. #allow
7. #between
8. #backreferences
9. #operators
10. #reused
11. #matched
12. #numbered
13. #reference
14. #groups
15. #expression
16. #regex
17. #apply
18. #grouped
19. #entire
20. #regular
21. #inside
22. #backreference