Word: 故 (gù) 故 dictionary entry gù old; former; reason; to die, dead; therefore; friend; intentional; happening; and 3 more Full dictionary entry for 故 Example sentences using 故 3 sentences, showing page 1 of 1. 亲向亲,故向故 qīn xiàng qīn,gù xiàng gù kin lean towards kin, old friends towards old friends 我写，故我在。 Wǒ xiě, gù wǒ zài. I write, therefore I am. 我思故我在。 Wǒ sī gù wǒ zài. I think, therefore I am.