ポストposuto

1. nounpostbox; mailbox; mail box; pillar box
   いったんポストに入いれたものは、郵便局ゆうびんきょくの所轄しょかつになる。↗

   Once a thing is posted, it is in the care of the Post Office.
2. nounpost; position
3. nounpost (e.g. goalpost)
4. noun, suru verb, transitive verb, Internetpost (on a blog, social media, etc.)
5. prenominal modifierpost- (e.g. post-Cold War)

• Synonym郵便受けゆうびんうけNeutralThe mailbox at your door or gate for receiving delivered mail. 「ポスト」 can mean this too, but usually refers to a street postbox.
• Synonym役職やくしょくWrittenWritten or formal prose for the position sense of 「ポスト」: a managerial post in an organization, as in 「役職に就く」.
• SynonymポジションNeutralA loanword for a position, job or stance, as in 「重要なポジション」. It never refers to a postbox.
• Synonym郵便箱ゆうびんばこNeutralA formal word for a postbox or mailbox; in daily conversation 「ポスト」 is the usual choice. It has no job or position sense.
• SynonymメールボックスNeutralA loanword for a mailbox for received mail, and also for an email inbox — a use 「ポスト」 does not cover.

For a postbox, 「ポスト」 is the default; 「郵便受け」 is the box at your door, and 「メールボックス」 covers email inboxes. For a job or position, use 「役職」 in formal writing or 「ポジション」; 「郵便箱」 is a formal alternative to 「ポスト」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 郵便箱ゆうびんばこ。
2. 地位ちい。
3. 柱はしら、標柱ひょうちゅう。
4. 投稿とうこう。
5. 以後いご、〜の次つぎ。