感謝します（かんしゃします、kanshashimasu）
- to be grateful

The Japanese word 感謝します, pronounced かんしゃします (kansha shimasu), directly translates to "I appreciate," "I thank you," or "I am grateful." It is a polite and respectful way to express gratitude or thankfulness for something someone has done or for a positive situation. It conveys a sincere feeling of appreciation.

⚫︎ご親切に感謝します Translation: I appreciate your kindness. ⚫︎ご協力に感謝します Translation: I thank you for your cooperation. ⚫︎お忙しい中、ご参加いただき、感謝します Translation: Thank you for attending despite your busy schedule.

⚫︎You can use 感謝します in various situations, both formal and informal, but it generally leans towards being more formal. ⚫︎It's appropriate when thanking someone for their help, a gift, a service, or any act of kindness. ⚫︎You can use it in both written and spoken Japanese. ⚫︎It is often used when addressing someone of higher status, such as a customer, a superior at work, or a person you don't know well. ⚫︎While it is polite, it's generally considered less formal than ありがとうございます (arigatou gozaimasu).

⚫︎The word is typically written with the kanji 感謝 (kansha) followed by the polite verb suffix します (shimasu). ⚫︎感謝 (kansha) means "gratitude" or "appreciation". ⚫︎The verb します (shimasu) is the polite form of "to do" and, in this context, adds a sense of action to the gratitude. ⚫︎The word is usually written in kanji and hiragana: 感謝します. ⚫︎The okurigana (hiragana attached to kanji) is します.

⚫︎ありがとうございます (arigatou gozaimasu) - "Thank you" (polite and common) ⚫︎ありがとう (arigatou) - "Thank you" (more casual) ⚫︎お礼を言います (orei o iimasu) - "I will express my gratitude" (formal) ⚫︎御礼申し上げます (orei moushiagemasu) - "I offer my gratitude" (very formal)

There aren't direct antonyms, but you could consider expressions of displeasure or dissatisfaction as the opposite of expressing gratitude.

いつも助けていただき、感謝します。 ・Translation: I always appreciate your help. ・Explanation: This sentence expresses gratitude for continuous support.

貴重なご意見をいただき、感謝します。 ・Translation: I appreciate your valuable opinion. ・Explanation: This sentence is used when thanking someone for their input or feedback.

The word 感謝 (kansha) comes from the combination of two kanji: 感 (kan), meaning "feeling" or "sensation," and 謝 (sha), meaning "apologize" or "thank." It's a combination that implies acknowledging and feeling grateful for something. The verb します (shimasu) is then added to make it a verb meaning "to do" or "to perform," in this case, the action of showing gratitude.