Two commonly used Hanja are 내 (內) and 외 (外). These mean "inside" (내) and "outside" (외), and you'll see them used in several common words.
- Reacting to my OLD Korean speaking videos | feat. Hyunwoo from TTMIK
- Verb Endings ~네(요), ~지(요), ~나(요), ~군(요) | Live Class Abridged