先发 xiānfā to take preemptive action Origin Definitions Defs Strokes Stroke Words Sentences Sents xiānfā to take preemptive action 先 xiān adverb first earlier in time or sequence; beforehand; in advance发 發 fā verb to set out To start a journey; to departxiānfā starter 先 xiān adverb first earlier in time or sequence; beforehand; in advance发 發 fā verb to send out To send out; to issue; to distribute; to deliver (as in mail, letters, or faxes).