Comprehension
Understanding, Roger
noun, verbal noun
When you've finished solving something, you've come to a point of comprehension and understanding. Also, used in (often radio) communication to signify you know what's up. It's like saying "roger!"
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
了解しました。
Roger that!
男は弱々しくうなずくことで了解の意を示し、立ち去りました。
The man expressed his understanding with a weak nod and walked away.
うちのオフィスには、マミのベーコンを勝手に食べてはいけないという暗黙の了解がある。
At our office, there's a tacit understanding that we should not eat Mami's bacon without her permission.