道谢 is a formal, polite verb meaning 'to express thanks' or 'to thank someone.' Literally, 道 means 'to speak' or 'to convey,' and 谢 means 'thanks' or 'gratitude.' Together, they form a compound verb emphasizing the act of verbally conveying appreciation—often in person, with sincerity and respect. It’s commonly used in written Chinese and formal spoken contexts, such as after receiving help, a gift, or hospitality.

Unlike the more casual 谢谢 (xiè xie), 道谢 implies intentionality and effort: one actively chooses to deliver thanks, sometimes even arranging a meeting or writing a note to do so. It frequently appears with objects (e.g., 向…道谢) or in structures like 特意道谢 ('specifically thank') or 当面道谢 ('thank in person'). While not archaic, it carries a slightly elevated register—common in news reports, letters, and mature speech, but rare in quick text messages among friends.