姑且 is an adverb meaning 'for the time being' or 'tentatively'—it expresses a temporary, provisional acceptance or action, often when a better option isn’t available or when one is willing to set aside doubts or objections. The character 姑 originally means 'aunt' but here functions as a prefix indicating 'provisional' or 'for now'; 且 means 'moreover' or 'still', reinforcing the sense of continuation despite uncertainty. Together, they form a fixed compound used to soften suggestions, justify compromises, or acknowledge imperfection while moving forward.

This word appears frequently in spoken and written Chinese, especially in discussions involving compromise, practical decisions, or polite deferral. It carries a slightly literary or formal tone compared to colloquial alternatives like 先 (xiān) or 暂时 (zànshí), and is commonly used before verbs or entire clauses. It’s rarely used in isolation and almost always modifies an action or judgment, signaling that the speaker recognizes limitations but chooses pragmatism.