k

Definition

K is the letter after J in the English alphabet. It is also often used as a short form for “thousand” (as in 10k), for Kelvin in science, or for “okay” in text messages.

Usage & Nuances

As a standalone word, K is uncommon in normal writing and usually appears in specific contexts. In messages, “k” can sound brief or even cold; “ok” or “okay” often feels friendlier. In numbers, “k” for thousand is informal and common online or in business talk, like “5k followers” or “20k salary”.

Example Sentences