4K

Alternative forms

 * 4k

Symbol

 * 1) 4000.
 * 2)  4096.

Noun

 * 1) The resolution of display devices or content having approximately 4000 pixels in horizontal; aka Ultra HD

Usage notes
In 16:9 devices, 4K and UHD 2160 are frequently interchangeable

Related terms

 * 1K / 1k
 * 2K / 2k
 * 8K / 8k