在先 zàixiān previously Origin Definitions Defs Strokes Stroke Words Sentences Sents 有约在先 yǒuyuēzàixiān to have a previous engagement to have a prior agreement or engagement; as promised or agreed upon beforehand有言在先 yǒuyánzàixiān to have said so beforehand to have made a statement or reached an agreement in advance; to forewarn