开疆拓土 kāijiāngtuòtǔ to expand territory Origin Definitions Defs Strokes Stroke Words Sentences Sents 开疆 開疆 kāijiāng to expand territory To expand national boundaries or open up new territory; to pioneer a frontier area.拓 tuò verbnoun to expand To open up or develop, such as land or a field of activity; to expand or broaden土 tǔ noun land land; territory; domain