| Subject | English | Russian |
| gen. | keep things low key | держаться малозаметно (VLZ_58) |
| gen. | keep things low key | не высовываться (VLZ_58) |
| gen. | key thing | главное (In that case we won't have to fill any additional paperwork. That's the key thing. 4uzhoj) |
| gen. | key thing | самое главное (In that case we won't have to fill any additional paperwork. That's the key thing. 4uzhoj) |
| cliche. | key things | основные моменты (Before you get started, there's three key things that I want you to remember when you are starting to work as a police detective... ART Vancouver) |
| media. | key things to know | основные моменты, которые необходимо знать (about ... – о(б) ...; CNN Alex_Odeychuk) |