九九[jiǔ] 数1.■ （八加一后所得） nine:九车间No. 9 Workshop;九成新ninety per cent new;三三得九。Three times three is nine.2.■ （表示多次或多数） many; numerous:九曲桥a zigzag bridge;三弯九转many twists and turns 名1.■ （从冬至起每九天是一个“九”） each of the nine nine-day periods beginning from the day after the Winter Solstice:三九天the third nine-day period after the Winter Solstice; the coldest days of winter2.■ （姓氏） a surname:九嘉Jiu Jia