函谷关 hángǔguān Old Hangu Pass Origin Definitions Defs Strokes Stroke Words Sentences Sents 函 hán to contain (bound form) to contain; to include; to wrap or enclose谷 gǔ nounproper noun valley valley; gorge; a low area or waterway between two mountains关 關 guān noun pass A mountain pass; a strategic checkpoint at a border or critical location