• 謝あやまる — to apologize
• 感謝かんしゃ — gratitude, appreciation
• 謝罪しゃざい — apology
• 謝恩しゃおん — expression of thanks
• 謝礼しゃれい — reward, gratuity
• 月謝げっしゃ — monthly tuition

謝 is made up of the speech radical 言 (ごんべん), and a phonetic component 射 (しゃ). Together, they form a character that means to say something in a formal or directed way — such as apologizing, excusing, or thanking.

Its use ranges from personal apologies (あやまる) to formal gratitude in business or education contexts (e.g., 謝礼, 謝恩).

彼かれは 心こころから 謝あやまった。
He apologized sincerely.

ご協力きょうりょくに 感謝かんしゃします。
Thank you for your cooperation.

The reading あやまる is used for personal apologies. The on-yomi シャ appears in compound words related to apologies or expressions of thanks.