纪[jì] 基本解释：
新英汉大词典：
- 纪[jì]
- 名词- （纪律） discipline:
military discipline;军纪
break the law and violate discipline;违法乱纪
- （古时以12年为一纪; 泛指较长的时间） a period of twelve years (in ancient China); a period of years:century;世纪
the Middle Ages中世纪
- {地质} （地质年代分期的第二级） subdivision of a geological era; period:the Sinian Period震旦纪
- （姓氏） a surname:Ji Chang纪昌
- 动词- （记录下来） put down in writing; record （义同“记”，主要用于“记录、纪年、纪元、纪传”等）:
chronicle纪事
- （找出散丝的头绪） sort (silk threads)
以上内容来源于：《新汉英大辞典》
例句与用法：
At the Olympic Games, he created a new world record.
Einstein's theory marked a new epoch in physics.
What is your age?
The teacher can't keep discipline in her class.
In this period, unemployment reaches record levels.
Who previously held the record?
纪的其他解释: