Quintuple VS
Synonym Boundary: "良い", "おはようございます", "おやすみなさい", "得意な", "朗報"
All represent the core concept "good", but require precise selection.
Japanese Option A
良い
よい (yoi) / いい (ii)
N5 / CEFR
Japanese Option B
おはようございます
おはようございます (ohayou gozaimasu)
N5 / CEFR
Japanese Option C
おやすみなさい
おやすみなさい (oyasuminasai)
N5 / CEFR
Japanese Option D
得意な
とくいな (tokui na)
N4 / CEFR
Japanese Option E
朗報
ろうほう (rōhō)
N2 / CEFR
Quintuple VS Nuance Contrast & Social Differences
When expressing "good" in Japanese, you must carefully distinguish between "良い", "おはようございます", "おやすみなさい", "得意な", "朗報" based on context.
- 良い (よい (yoi) / いい (ii) - Level: N5): Maps to "good, nice" and is used when 「良い」.
- おはようございます (おはようございます (ohayou gozaimasu) - Level: N5): Maps to "Good morning." and is used when Used in the morning, typically until around noon. More polite than just 「おはよう」.
- おやすみなさい (おやすみなさい (oyasuminasai) - Level: N5): Maps to "Good night" and is used when A polite farewell greeting used in the evening, especially when someone is going to bed or when parting ways late at night. A more casual version, おやすみ.
- 得意な (とくいな (tokui na) - Level: N4): Maps to "good at, strong in, one's forte" and is used when A な-adjective. Opposite of 苦手な. Used to express being good at something, or having a skill. Often paired with the particle が.
- 朗報 (ろうほう (rōhō) - Level: N2): Maps to "Good news; glad tidings" and is used when Used to express positive and often significant news. Can be a bit formal. 朗報を伝える.
Context for "良い"
これは良い本です。
This is a good book.
Context for "おはようございます"
おはようございます！今日も一日頑張りましょう。
Good morning! Let's do our best today too.
Context for "おやすみなさい"
父に「おやすみなさい」と言ってから寝ました。
I said "Good night" to my father before going to bed.
Context for "得意な"
彼はスポーツが得意で、特に水泳が得意です。
He is good at sports, especially swimming.
Context for "朗報"
先生から合格の朗報を聞いて、とても嬉しかった。
I was very happy to hear the good news of my success from the teacher.
Synonym Mastery Challenge
Which Japanese word perfectly fits this blank space?
Fill in the blank: "これは ＿＿＿ 本です。" (Meaning: "This is a good book.")
🎉 Correct Answer!
Remember: "良い" is correct here because it represents "good, nice" in the context: "This is a good book.".