扉(とびら)

扉(とびら) specifically refers to a hinged door that swings open, as opposed to sliding doors. It often has a more literary or formal nuance than ドア.

Distinctions:

• 扉(とびら): hinged door (literary, includes gates)
• ドア: door (casual loanword, common in daily speech)
• 戸(と): general term for door/sliding door
• 障子(しょうじ): paper sliding door
• 襖(ふすま): opaque sliding door

Figurative usage:

• 新(あたら)しい扉(とびら)を開(ひら)く (open new doors/possibilities)
• 心(こころ)の扉(とびら) (the door of one's heart)