1An ambassador — the top-ranking diplomat sent to represent one's country in another nation.
新しい日本大使が来週、正式に着任する。
The new Japanese ambassador will officially take up the post next week.
大使は両国の友好関係を深める役割を担っている。
The ambassador plays a role in deepening friendly relations between the two countries.
彼女は経験豊富な外交官で、以前は駐米大使を務めていた。
She is an experienced diplomat who previously served as ambassador to the United States.