guó
surname Guo
Guo, a kinship group whose members held dukedoms within the Zhou Dynasty realm, including Western Guo 西虢國|西虢国[Xi1 Guo2 guo2] and Eastern Guo 東虢國|东虢国[Dong1 Guo2 guo2]
假途灭虢
jiǎ tú miè guó
lit. a short-cut to crush Guo (idiom); fig. to connive with sb to damage a third party, then turn on the partner
假道伐虢
jiǎ dào fá guó
to obtain safe passage to conquer the State of Guo