noun, noun or participle which takes 'suru', intransitive verb
going west; leaving for the west
Typically used for travel from Tokyo to the Kansai region. Often appears in formal or written contexts, such as news reports or schedules.
首相は明日、大阪へ西下する予定だ。
The prime minister is scheduled to go west to Osaka tomorrow.
彼の西下に合わせて
A meeting was arranged to coincide with his trip west.