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Rex [name]
Rex 作为人名，常用于男性。
My friend is named Rex.
我的朋友名叫雷克斯。
国王；君主
先理解核心含义，再看它在真实句子里的用法。
国王；君主
king
My friend is named Rex.
我的朋友名叫雷克斯。
国王,尤指古罗马的。
A king, particularly in ancient Rome.
一种因基因隐性变异导致护毛极短或完全缺失的动物。
An animal which has a genetic recessive variation that causes the guard hairs to be very short or fully lacking.
The rex ruled the small kingdom for thirty years, and the people called him a wise king.
这位国王统治那个小王国三十年，人们称他为睿智的君主。
In the old legend, the rex wore a golden crown and carried a silver scepter.
在古老的传说中，国王头戴金冠，手持银杖。
The two rexes met at the border to sign a peace treaty.
两位国王在边境会面，签署和平条约。
Rex 作为人名，常用于男性。
My friend is named Rex.
我的朋友名叫雷克斯。
这种用法多见于历史或文学语境。
The rex of the ancient kingdom was wise.
古代王国的国王很英明。
Not this
He rexed the kingdom.
Use this
He was the rex of the kingdom.
rex 是名词，意为“君主”，不能用作动词。应使用系表结构表达“身为君主”。
Not this
The storm caused many rex.
Use this
The storm caused many wrecks.
rex 与 wreck 发音相近但意义不同，rex 意为“君主”，而“残骸”应为 wreck。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
霸王龙
The Tyrannosaurus rex was a fearsome predator.
霸王龙是一种可怕的捕食者。
Use rex naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
霸王龙（T-Rex）中的'Rex'就是国王的意思，联想霸王龙是恐龙之王。
Register: mixed; contexts: formal legal or historical when meaning 'king', informal when used as a given name. In Chinese: 作为“国王”解时多用于正式或历史语境，而作为人名“雷克斯”则比较常见于日常用语。
used as a title or name
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.