Synonym Boundary: "ありがとう", "お疲れ様", "感謝する", "ねぎらう"

When expressing "thank" in Japanese, you must carefully distinguish between "ありがとう", "お疲れ様", "感謝する", "ねぎらう" based on context.

• ありがとう (ありがとう (arigatou) - Level: N5): Maps to "Thank you" and is used when An informal way to express gratitude. The polite form is ありがとうございます.
• お疲れ様 (おつかれさま (otsukaresama) - Level: N5): Maps to "Thank you for your hard work; You must be tired (greeting)" and is used when A common greeting used to acknowledge someone's effort or hard work, often said at the end of the day, after a meeting, or when someone has completed a task. Not necessarily implying the person is *actually* tired, but showing appreciation..
• 感謝する (かんしゃする (kansha suru) - Level: N4): Maps to "to thank, to appreciate, to be grateful" and is used when A more formal way to express gratitude compared to ありがとう. Often used in written form, formal speeches, or when expressing deep appreciation..
• ねぎらう (ねぎらう (negirau) - Level: N2): Maps to "to thank for hard work, to express gratitude for effort" and is used when Used to appreciate someone's effort or labor, often after a long or difficult task..

Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!