noun, noun or participle which takes 'suru', transitive verb
comprehension; understanding; consent; agreement
Used for grasping a situation or giving consent. Often used in formal or business contexts to acknowledge information or agree to a plan.
彼の説明で状況を了解した。
I understood the situation from his explanation.
上司に計画の変更を了解してもらった。
I got my boss's consent for the change of plan.
interjection
Interjection used as an acknowledgment, especially in radio communication or casual confirmation. Equivalent to 'roger' or 'copy that'.
「了解、すぐに向かう。」
"Roger, I'm on my way."
無線で「了解」と返事した。
I replied 'roger' over the radio.