了解(りょうかい)comprehension, consent, understanding, agreement, roger (on the radio)

芸能人(げいのうじん)にCM出演(しゅつえん)の了解(りょうかい)を求(もと)める。

Ask for the consent of the celebrities to appear in commercials. {comprehension, consent, understanding, agreement, roger (on the radio)}

両社(りょうしゃ)の間(あいだ)で了解(りょうかい)が成(な)り立(た)ったので、取引(とりひき)をしました。

Since an agreement was established between both companies, we conducted business. {comprehension, consent, understanding, agreement, roger (on the radio)}

部下(ぶか)：「会議(かいぎ)の資料(しりょう)ができました！」部長(ぶちょう)：「了解(りょうかい)、ありがとう！」

Subordinate: 'The materials for the meeting are ready!' Department Head: 'Understood, thank you!' {comprehension, consent, understanding, agreement, roger (on the radio)}

日本(にほん)には電車(でんしゃ)やバスの中(なか)では大声(おおごえ)で話(はな)さないという暗黙(あんもく)の了解(りょうかい)がある。

In Japan, there is an unspoken understanding that you do not speak loudly on trains or buses. {comprehension, consent, understanding, agreement, roger (on the radio)}

この手紙(てがみ)の内容(ないよう)は意味(いみ)不明(ふめい)なので、この来信(らいしん)を了解(りょうかい)するわけにはいきません。

The content of this letter is incomprehensible, so I cannot understand this incoming mail. {comprehension, consent, understanding, agreement, roger (on the radio)}