こんばんは（こんばんは、konbaんha）
- good evening

こんばんは is a Japanese greeting used to say "good evening" or "hello" in the evening. It's a polite and common way to greet someone after the afternoon. It acknowledges the passing of the day and welcomes the evening hours.

⚫︎ こんばんは。お元気ですか？ Translation: Good evening. How are you? ⚫︎ こんばんは、田中さん。 Translation: Good evening, Mr. Tanaka.

⚫︎ こんばんは is used from late afternoon/early evening (around sunset) until bedtime, or when it's dark. ⚫︎ It is generally used when greeting someone, similar to how "good evening" is used in English. ⚫︎ It's a standard greeting, suitable for various situations, from casual to formal. ⚫︎ You can use it when meeting someone or when seeing them again in the evening. ⚫︎ It's appropriate to use こんばんは for anyone, including friends, family, colleagues, and strangers.

⚫︎ こんばんは is typically written in hiragana. ⚫︎ It is not usually written in kanji or katakana. ⚫︎ There are no variations in okurigana.

⚫︎ While こんばんは itself doesn't have direct synonyms that have the exact same meaning, here are other greetings you can use at different times of the day: ⚫︎ こんにちは (Konnichiwa) - Hello, good afternoon (used from around midday). ⚫︎ おはようございます (Ohayou gozaimasu) - Good morning (used from early morning until around midday).

⚫︎ こんばんは does not have a direct antonym. Other greetings are used at different times of the day such as おはようございます or こんにちは

友達とレストランで会いました。「こんばんは！」と挨拶しました。 ・Translation: I met my friend at a restaurant. I greeted him with, "Good evening!" ・Explanation: This shows how こんばんは is used when greeting someone in the evening.

夜7時に、先生に「こんばんは」と言いました。 ・Translation: At 7 pm, I said "Good evening" to the teacher. ・Explanation: This shows a standard usage of こんばんは to address a teacher.

⚫︎ こんばんは is a shortened form of the phrase 今晩は, which literally means "this evening." ⚫︎ The word 今晩 (Konban) means "this evening" and the particle は(wa) indicates the topic of the sentence. ⚫︎ Over time, the phrase was shortened and became a fixed greeting.