扉（とびら、tobira）
- door

The word 扉 扉 (とびら) means "door" or "gate". It refers to a movable barrier used to open and close an entrance, providing access between spaces. It can be a physical door in a building, a gate in a fence, or even a symbolic door representing a transition or entry point.

⚫︎玄関の扉 Translation: The entrance door. ⚫︎あの店の扉を開ける Translation: To open the door of that store. ⚫︎心の扉を開く Translation: To open the door of the heart (figuratively).

This word is commonly used in everyday Japanese to refer to physical doors and gates. It can also be used metaphorically to describe a beginning, opportunity, or change. It's a versatile word and is appropriate in many situations.

扉 is typically written using the kanji 扉. The reading is とびら in hiragana. There are no other common ways to write this word. The okurigana (送りがな) is usually ら.

There are some related words: ⚫︎ドア (doa): "door" (loanword from English). ⚫︎門 (もん): "gate" ⚫︎戸 (と): A simpler form of "door" (often used in compounds or with traditional houses).

There are no direct antonyms in the same sense. However, phrases indicating closing or blocking access could be considered related: ⚫︎閉める (shimeru): "to close" ⚫︎塞ぐ (fusagu): "to block"

その扉は固く閉ざされていた。 ・Translation: That door was firmly closed. ・Explanation: This sentence uses 扉 to describe a closed door, highlighting the physical action.

新しい未来の扉が開かれた。 ・Translation: The door to a new future has opened. ・Explanation: This sentence uses 扉 metaphorically to represent the beginning of a new possibility.

The etymology of 扉 is not definitively known, but it is believed that the kanji combines elements relating to the structure and function of a door or gate. It's a compound of two parts, the meaning of which can be traced back to the concept of a "door" or "entrance".