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2023年5月21日 · The next time you need to choose between '21th' vs. '21st', you should have no problem picking the right one. Just to be sure, let's recap what you learned: '21th' is incorrect …

2024年12月27日 · 21th的读法为twentyoneth，其中"twenty"代表20，"one"代表1，"th"则表示序数词的后缀。 这种写法较为罕见，通常在学术或正式文献中较少见到。 21st的读法则为twentyfirst，读法更为常见。 其中"twenty"代表20，"first"代表1，"st"则是序数词的后缀。 这种写法符合大多数英语使用者的习惯。 尽管两种写法都能正确表达21的序数词，但出于习惯和语言习惯的考虑，21st更为常用。 在日常交流和写作中，建议使用21st以避免不必要的混淆。 值得注意 …

Define 21st. 21st synonyms, 21st pronunciation, 21st translation, English dictionary definition of 21st. Adj. 1. 21st - coming next after the twentieth in position twenty-first ordinal - being or denoting a numerical order in a series; "ordinal numbers"; "held...

“21st” is the correct form to indicate the ordinal number between 20th and 22nd. “21th” is an irregular ordinal number, because it ends with 1. The number one, as an ordinal number, is “First” – and the suffix used to indicate that is “-st”.

TWENTY-FIRST definition: 1. 21st written as a word: 2. the day on which a person reaches the age of 21 and is traditionally…. Learn more.

21 (twenty-one) is the natural number following 20 and preceding 22. The current century is the 21st century AD, under the Gregorian calendar. 1) Typically, 21st refers to anything that comes next after the twentieth in position.

2024年3月24日 · 21th is incorrect. The proper ordinal representation for twenty-one is 21st, denoting a position after the 20th. How to spell 21st? The sound "twenty-one" ends in "-one," …

2023年9月5日 · If you are trying to figure out whether '21th' or '21st' is correct, I can help! Here is the short answer: '21th' is a grammatical error and, therefore, never correct. '21st' is the correct numerical abbreviation of the ordinal twenty-first. Twenty-first is an adjective and noun that means number 21 in a series or divisible into 21 equal parts.

21ST Dictionary entry overview: What does 21st mean? • 21ST (adjective) The adjective 21ST has 1 sense: