九十 | jiǔ shí | ninety | |
九成 | jiǔ chéng | nine-tenths / ninety percent | |
行百里者半九十 | xíng bǎi lǐ zhě bàn jiǔ shí | lit. ninety li is merely a half of a hundred li journey (idiom) / fig. the closer one is to completing a task, the tougher it gets / a task is not done until it's done | |
耄期 | mào qī | to have reached the age of eighty or ninety |