ドア（ドア、doa）
- door

The word ドア (doa) means "door" in English. It refers to a movable barrier used to open and close an entrance to a room, building, vehicle, or other enclosed space. It can also refer to the physical structure of the door itself.

⚫︎ドアを開けてください。 ・Translation: Please open the door. ⚫︎そのドアは重いです。 ・Translation: That door is heavy. ⚫︎新しいドアを取り付けました。 ・Translation: I installed a new door.

⚫︎You can use ドア in various situations to talk about doors. ⚫︎It's a very common and essential word in daily conversation. ⚫︎It's generally used when you are talking about the physical object, not the concept of entering or exiting, for which other verbs are used. For example, if you want to say "I entered the room," you would use a verb like 入る (hairu - to enter), and not ドア.

⚫︎ドア is written in katakana, as it's a loanword from English ("door"). ⚫︎There is no kanji for ドア. ⚫︎There are no variations in okurigana.

⚫︎There are no direct Japanese synonyms for "door" in the same sense. ⚫︎However, words related to entrance or access might be used, depending on the context.

⚫︎There isn't a direct antonym. You might use phrases like "open" (開いている - aiteiru) or "closed" (閉まっている - shimatteiru) when describing the state of a ドア.

この[ドア]は自動です。 ・Translation: This door is automatic. ・Explanation: This sentence describes the type of door.

誰も[ドア]の前にいませんでした。 ・Translation: No one was in front of the door. ・Explanation: This sentence describes the location of someone.

The word ドア comes directly from the English word "door". It was adopted into the Japanese language, retaining the original meaning and pronunciation.