Is 2k 1080p or 1440p?

Related questions

1. Does 16k resolution exist?
2. Is 1440p twice 1080p?
3. Is 4k noticeable over 1080p?
4. Is 2560x1440 better than 1920x1080?
5. Is 4 megapixels better than 1080p?
6. What is Quad HD resolution?
7. What is HD resolution?
8. What's the highest resolution camera?
9. Can iPhone shoot 4k?
10. Can the iPhone XS play 4k?

Tags

1. #reason
2. #people
3. #1080p
4. #resolution
5. #because
6. #really
7. #should
8. #could
9. #horizontal
10. #technically
11. #1440p
12. #being