Use a hyphen when writing a compound number.Do not hyphenate connected words if the first word ends with "ly.".For example, "full-scale" modifies "test" in "full-scale test." However, do not hyphenate connected words that act as adjectives. Hyphenate words that act together to modify the following word.For example, "know-how" has a different meaning than "know" and "how." Hyphenate two or more words that act as a new word or has a new meaning when connected.Keep in mind many rules only apply in certain circumstances. For example, "to-do," "merry-go-round," "high-risk," "T-shirt," and "sixty-six" are all words with hyphens. Hyphens are used in some compound words (connected words) to make the word easier to read and help clarify words used together. See our en dash and em dash pages for further information on creating these longer hyphens. What are the most common symbols used by computers?Ī dash that's longer than a hyphen is called an en dash or em dash. In Microsoft Windows, the minus or underscore is also shown on the top-right side of a window to represent the minimize feature. Other places with the minus symbolĪ minus symbol or a horizontal line indicates a decrease, remove, move up, or zoom out on software programs and hardware devices. For example, pressing Ctrl+ - while in a browser zooms out and decreases the font size of a web page. The hyphen can be used in keyboard shortcuts. Word processors and some other text editors may automatically convert several hyphens placed together into a solid line. That has been separated with several hyphens. Joining several hyphens together helps create a divider line in the text to make things easier to read, as shown below. See the when should I hyphenate words section for further information. Hyphens are used in some compound words to make the word easier to read and help clarify words used together. For example, if you used the below search, the search engine would return results containing "free," "computer," and "help" but would not return any results containing "expensive." free computer help -expensive A hyphen in English With Internet search engines, the hyphen is used as a boolean operator that tells the search not to include a result. When formatting marks are enabled, these hyphens are represented with the conditional hyphen mark.Ī hyphen can also be used to create an en dash and em dash in many word processors by doing two or three hyphens next to each other. In many word processors, an optional hyphen or hyphenation is automatically inserted when a word is cut off by the end of a line. To subtract numbers on a computer or smartphone, a calculator or spreadsheet could be used. For example, the formula below shows that 2 1 equals 1. In a math formula, a hyphen represents a subtraction (minus). The following sections contain examples of how a hyphen is used. With computers, the hyphen key is commonly used in programming and mathematics to subtract one number from another. A negative is placed before a number to indicate it's not a positive number.A minus is a math operator to perform a subtraction between two numbers.A hyphen is a punctuation mark that's used to join words.A dash is a punctuation mark to insert an interjection or pause in a sentence.Below is a basic definition for each of these terms. Differences between dash, hyphen, and minusĪlthough the same keyboard key is used for a dash, hyphen, and minus, there are differences between these terms. To create a hyphen on a smartphone or tablet, open the keyboard and go into the numbers (123) or symbols (sym) section and tap the "-" symbol. Creating the "-" symbol on a smartphone or tablet The professor's hypothesis-though rejected by scholars-actually had merit.Doing the Alt code Alt+45 can also create a hyphen.Do not place spaces before or after the dashes: The em dash is the longest and denotes an abrupt change, interruption, or emphatic phrase. For those that don't, use two hyphens to represent an em dash, and a hyphen to represent an en dash. Most document creation programs have em and en dashes available. For our purposes here, there are three types to know: the em dash, the en dash, and the hyphen. There are several types of dashes, each with specific uses.
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