Do you hyphenate units?
A hyphen is used to join a unit of measure and the number associated with it when the combination is used as an adjective (§18.3. 7, Hyphens, p 792 in print).
Should 30 minute be hyphenated?
U.S.A. In your example above, ‘thirty-minute’ is a compound adjective which modifies ‘wait’; compound adjectives should be hyphenated. If you had said, ‘I waited for 30 minutes’, thirty would be a single adjective modifying minutes, in which case you don’t hyphenate.
Do you hyphenate one hundred?
Larger round numbers, such as “one hundred,” do not require a hyphen.
Is 19th century hyphenated?
fourteenth- century monastery twenty- first- century history a mid- eighteenth- century poet late nineteenth- century politicians her style was nineteenth century Noun forms always open; ad- jectival compounds hyphenated before but not after a noun.
Does 1 hour Need a hyphen?
1 Answer. Because you are making an adjective out of the words one and hour, you should hyphenate. The combination of one and hour modifies the word session.
Is 100 percent hyphenated?
You don’t need to use hyphens in percentages unless they form part of a longer description (compound adjective) before the noun.
Does 20 minute need a hyphen?
Minutes are usually only hyphenated when they’re used in a sentence or phrase as a compound adjective to describe a noun.
Do you use hyphens when writing numbers?
When numbers are used as the first part of a compound adjective, use a hyphen to connect them to the noun that follows them. This way, the reader knows that both words function like a unit to modify another noun. This applies whether the number is written in words or in digits.
Does two hundred have a hyphen?
Hyphens in numbers as words When to use words for numbers and when to use figures is a style choice. Use a hyphen when writing two-word numbers from twenty-one to ninety-nine (inclusive) as words. But don’t use a hyphen for hundreds, thousands, millions and billions.
Does four hundred have a hyphen?
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 second largest hyphenated?
Contrary to other responses: A hyphen is required in “second-largest” if being used as a compound adjective, as in: “That is the second-largest pizza I have ever seen.”
When to use a hyphen with 100 m dash?
100 m dash ( Note that CMOS uses a period when abbreviating English units but not when abbreviating metric units.) CMOS further advises using a hyphen when the unit, abbreviation, or symbol is spelled out, with the exception of percent.
What does it mean when a compound has no hyphen?
Open Compound Words. Open compounds are typically made up of two nouns that are used together to represent a single idea. “Open” means that there is a space between the two words and no hyphen. A good dictionary is the best place to check whether a compound is open or not.
Do you use hyphens with units of measure?
You may want to avoid using abbreviations in formal writing; however, if you choose to use them, the abbreviation of square foot is sq. ft. In addition, our post Hyphenation with Numbers and Units of Measure notes that CMOS uses a period when abbreviating English units and does not use hyphens with them even in adjectival form.
When do you put hyphens between two words?
Here is the rule: when you’re combining two or more words to form a compound adjective in front of a noun, put hyphens between these words. Lara handed me a 15-foot pole. An eighteen-inch monitor is too big for my desk.
