海阔天空 hǎikuòtiānkōng boundless Origin Definitions Defs Strokes Stroke Words Sentences Sents 海 hǎi noun sea ocean or sea; large bodies of water including salt lakes or large inland lakes阔 闊 kuò adjective wide wide; broad; vast; having a great area or width天空 tiānkōng noun sky sky; heavens; the vast space above the earth