車内(しゃない)

USAGE: 車内(しゃない) commonly refers to the inside of trains and buses in public transportation contexts.

COMMON COLLOCATIONS:

• 車内(しゃない)アナウンス (in-train announcement)
• 車内(しゃない)放送(ほうそう) (in-train broadcast)
• 車内(しゃない)販売(はんばい) (on-train sales, like snacks and drinks)
• 車内(しゃない)マナー (train etiquette)
• 車内(しゃない)広告(こうこく) (in-train advertisement)

CONTRAST:

• 車外(しゃがい) - outside the vehicle
• 社内(しゃない) - inside the company (different kanji, same reading)

NOTE: The kanji 車(くるま) refers to vehicles, while 社(しゃ) refers to companies. Context usually makes the meaning clear.