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The Daily Insight

Do you hyphenate twenty nine?

Author

David Jones

Updated on April 05, 2026

You should always hyphenate numbers when you are describing compound numbers between 21 and 99 (except 30, 40, 50, 60, 70, 80 and 90). A compound number is any number that consists of two words; for example, eighty-eight, twenty-two, forty-nine. Numbers higher than 99 do not need a hyphen.

Is twenty first hyphenated?

Compound numerals Hyphenate compound cardinal and ordinal numerals from twenty-one (twenty-first) to ninety-nine (ninety-ninth) when they are written out: There are twenty-nine members on the committee.

Do you hyphenate two nationalities?

For now, The New York Times Manual of Style and Usage uses hyphens in most expressions of compound nationality, like “Italian-American,” “Japanese-American,” “Irish-American” and “Asian-American,” but not others, like “Jewish American” or French Canadian.” Confusing.

Should two day be hyphenated?

2 Answers. “Two-day” is an adjective here, written as one word. ” two days’ ” is a possessive form (“an auction of two days”). First variant is more common to use.

Should one third be hyphenated?

Fractions should always be hyphenated when they are adjectives or adverbs, as in They got a one-third share and The money is three-quarters gone. One can think of the hyphen as representing the division bar in a fraction in figures.

Should twenty-first century be capitalized?

twenty-first century? My short answer for all specified contexts is twenty-first century. Unless the name of the century begins a sentence or is part of a proper name, it is written in all lowercase letters: We are living in the twenty-first century.

Should twenty-first century hyphenated?

Centuries conform to the general rule for hyphenating a compound adjective. When it comes before the noun, include century in the hyphenation (in the case of twenty-first century and above). It is now the twenty-first century.

Does American English hyphenate?

Generally, American English tends toward omission of the hyphen when it comes to prefixes (“readjust” or “midline,” for example), while British English tends toward hyphenation in the case of prefixes (“pre-school,” for example). However, there are no hard and fast rules.

Is European American hyphenated?

Hyphenated American identities “European American”, as opposed to White or Caucasian, has been coined in response to the increasing racial and ethnic diversity of the US, as well as to this diversity moving more into the mainstream of the society in the latter half of the twentieth century.

Should 24 Hour be hyphenated?

Compound Numbers that are below one hundred and made up of two words require hyphenation. Compound adjectives used before a noun are hyphenated as well, requiring “24” and “hour” to be hyphenated in “24-hour shift”. So only example 3, “I am doing a twenty-four-hour shift tonight” is correctly hyphenated.

Should 10 day be hyphenated?

The fact that you have at least one hyphen in the phrase means you’re already on the right track. First, let’s back up and look at why you need hyphens in a phrase like this. The phrase “ten-day trip” includes a compound modifier, a group of words (ten-day) that modify a noun (trip).

Do fractions get hyphens?

Fractions are written out in words. They are hyphenated only when they come right in front of a noun, called a “direct” adjective.