Hyphens & Capitalization in Headings

two footstools vs. two-foot stools
Linking Words to Clarify Meaning
Clarifying Meaning
Hyphens are used to avoid ambiguity for the reader, yet they seem to cause more difficulty for writers than any other form of punctuation.
| NO HYPHEN | HYPHEN |
|---|---|
Two footstools sold for a half-million dollars at Sothebys. (quantity) |
Two-foot stools sold for a half-million dollars at Sothebys. (measurement of stools) |
We have used bookstores for our meetings. (utilized the location) |
We have used-book stores for our meetings. (possess stores with preowned books) |
When the patient recovers, take him to his room. (regains health) |
When the patient re-covers, take him to his room. (covers himself again with clothing) |
Early American Buys at Furniture Auction (An individual came before the expected time.) buys = (v.) |
Early-American Buys at Furniture Auction (A style of furniture is available at a good price.) buys = (n.) |
Also see: Numbers as adjectives
Resources for Determining Use
Hyphens are used to clarify confusing word use or phrasing. Dictionaries do not always agree on whether a word should be written as one word (closed), two words (open) or with a hyphen (hyphenated).
- Use a dictionary such as Longman LDOCE, Merriam Webster, American Heritage or Dictionary.com (includes multiple resources) to check a word in question. If someone challenges your word usage, cite your source.
- Use your spell checker, but be aware that it cannot distinguish the meaning of words within the given the context as well as you can.
- Use the The Chicago Manual of Style (CMOS) 30-day online trial, and The Associated Press Stylebook (AP), $25 per year, as resources.
Hyphen History: Words in Transition (CMOS 7.85)
Linked words change through time. As they become more closely associated, they move through the three phases shown below. It is hard to know whether a term made up of two closely associated words needs a hyphen or not. Use a dictionary as your resource and as your defense if challenged.
| TWO WORDS (OPEN) | HYPHENATED | ONE WORD (CLOSED) |
|---|---|---|
Phase 1: A term is created for a specific use. |
Phase 2: After a period of use, the term may enter conventional use, and then a hyphen is added as a temporary way of the linking the two words. |
Phase 3: As the word becomes accepted, included in dictionaries, the bond between the two words becomes more permanent resulting in a compound word. |
good bye |
good-bye |
goodbye |
on line |
on-line |
online |
electronic mail |
email (not formally accepted as one word yet) |
|
bird feeder, bird nest (bird words in transition) |
bird-dog, bird-watch |
birdhouse, birdseed, birdcage, birdbath |
vice president, vice admiral (vice words in transition) |
vice-consul, vice-chancellor, president-elect |
viceroy |
Hyphens
Word Use
Compound Words — (CMOS 7.83)
| TYPE | EXAMPLES |
|---|---|
Use a hyphen between two nouns of equal importance: |
singer-songwriter, city-state, producer-director |
Use a hyphen between two numbers spelled out: tens and units (21 – 99): AP "when large numbers must be spelled out, use a hyphen to connect a word ending in -y to another word: twenty-one, fifty-five, etc." |
I counted sixty-five. She is twenty-one. BUT: I met her in 1991. Do not spell out the names of years. |
Letter Collision or Readability — (CMOS 7.85)
| TYPE | EXAMPLES |
|---|---|
Use a hyphen between two letters to avoid a word that can be misread: |
reenter re-enter; reelection re-election, antiitch anti-itch, coopt co-opt, deice de-ice, shelllike shell-like, nonnative non-native (but not cooperate and coordinate) |
Use a hyphen to distinguish homonyms: |
recreation re-creation; unionized un-ionized, remark re-mark, resign re-sign, reserve re-serve; recover re-cover |
Line Breaks for Printed Material
| TYPE | EXAMPLE |
|---|---|
Use a hyphen to split a word to accommodate a fixed sentence length in print: |
Hyphens cause writers more trou-
ble than any other form of punc-
tuation, except perhaps commas.
This is because the hyphen has no
equivalent in speech; it is punctua-
tion created purely by the needs of print.
|
Linking Words that Modify a Noun — (CMOS 7.86)
| TYPE | EXAMPLES |
|---|---|
Use a hyphen to link two nouns that modify another noun: |
The Menlo-Atherton train station, The California-Nevada border |
Use a hyphen to clarify a modifier and a noun: |
[three foot] stools three-foot stools; |
Use a hyphen to link multiple words together as modifiers: |
The forget-me-not state flower |
Use a hyphen to link a modifying fraction: |
a one-half inch piece (adj.) but not one half of Congress (n.) |
an eight-hour day, a two-week vacation; a 40-hour-work week,
It was a two-thousand-twenty-six dollar-fine,
a fourteenth-century church, twenty-first century literature,
a sixteen-year-old girl, a ninety-year-old woman; a third-floor apartment |
|
Use a hyphen to link a modifying color: |
emerald-green lake, coal-black eyes but emerald green (n.) coal black (n.) |
Use a hyphen to indicate an inexact amount: (odd) |
sixty-odd people |
Use a hyphen to link an adjective and a noun modifier: |
small-state senators, high-stakes gambling, middle-class neighborhood, kilowatt-hour meter, same-sex marriage, a tenure-track position |
Use a hyphen to link a modifying adverb (not ending in -ly): ill-, well-, lesser-, little-, much-, best-, most (CMOS 7 .86) |
ill-favored project, well-known person, little-known fact, best-selling novel, most-skilled workers |
Use a hyphen to link a modifying -ing participle: (before and after the noun) |
mind-blowing experience, thirst-quenching drink, tongue-lashing speech; cutting-edge technology, chopping-block technique |
Use a hyphen to link a modifying -ed participle: (before and after the noun) |
web-based course, fast-paced movie, double-padded shoulders, open-mouthed jar, mass-produced cars; dressed-up people, stuffed-shirt executive |
cross-, full-, ex-, ever-, e- |
cross-country race, a full-length mirror, the ever-present road congestion,ex-boyfriend, e-commerce web site |
- free, -sided, -fold, -elect |
a toll-free number, a nicotine-free cigarette, wood-sided house, four-fold recipe, president-elect, mayor-elect; |
Use a hyphen to link a proper noun and an adjective: |
Afro-American woman (but not African American) Greco-Roman wrestling; Franco-American Studies Center (but not French Canadian or Latin American) |
Use a hyphen to link a relationship term: (-in-law, great-, self-) |
sister-in-law, mother-in-law, father-in-law, great-grandmother, |
Use a hyphen to link a modifying prefix with a proper noun or number: |
pro-British forces, anti-Semitic statement (prefixes with proper nouns), pre-1900 coin (prefixes with dates), mid-1985 to late 1986 music, pro-American magazine, un-American activities |
Range of Time or Variation — (CMOS 7.89)
| TYPE | EXAMPLES |
|---|---|
Use a hyphen to link a range of time: |
thirty- and sixty-minute massages; twenty- to thirty-five people; five- or ten-minute intervals |
Use a hyphen to link a range or variation: |
long- and short-term memory; over- and under-worked employees; small- and large-scale construction projects |
Prefixes
SOURCE 1: The Chicago Manual of Style — Compound words formed with prefixes are normally "closed" (one word).
THE CHICAGO MANUAL OF STYLE (CMOS) 7.9 #3
| PREFIXES | HYPHENATED | ONE WORD |
|---|---|---|
ante, anti, bi, bio, co, counter, cyber, extra, hyper, infra, inter, intra, macro, mega, meta, micro, mid, mini, multi, neo, non, over, post, pre, pro, proto, pseudo, re, semi, social, super, supra, trans, ultra, un, under
|
meta-analysis, multi-institutional, pro-life,
|
All prefixes are usually one word. |
un-, pro-, anti-, pre-, trans-, mid-, etc. |
Except with proper nouns: |
|
anti-, re-, co, non, un-, intra-, etc. |
Except when separating root words with same initial letter: anti-intellectual, re-entry, co-own, un-unionized, intra-arterial, semi-invalid |
|
sub- |
Except with double prefixes: |
|
Prefixes
SOURCE 2: The Associated Press Stylebook — Compound words formed with prefixes are mostly "closed" with more exceptions than CMOS.
THE ASSOCIATED PRESS STYLEBOOK (AP) p.51
| PREFIXES | HYPHENATED | ONE WORD |
|---|---|---|
anti-, pro- |
Except when indicating favor for some party, system, idea: pro-British, pro-choice, pro-labor, pro-environment, pro-communist, anti-Semitic anti-abortion, anti-war, anti-labor, anti-aircraft, anti-social |
Most prefixes are usually one word. |
co- |
co-author, co-chairman, co-defendent, co-host, co-owner, co-pilot, co-signer, co-star, co-worker |
coed, coeducation, coequal, coexist, *cooperate, *coordinate |
non- |
Except when separating a prefix ending in the same letter that begins the root word: non-native, non-nuclear |
(usually one word) |
pre- |
Except when prefixes precede proper nouns and dates: pre-Christian, pre-Columbian, pre-K pre-1900 |
(usually one word) |
post- |
post-bellum, post-mortem (but post office) |
(usually one word) |
trans- |
trans-American (but transatlantic, transcontinental) |
(usually one word) |
sub- |
Except with double same prefix: sub-sub paragraph |
(usually one word) |
*These two words are exceptions to rule in which a hyphen is used after a prefix that ends in the same vowel that begins the root word.
Prefixes
SOURCE 3: American Psychological Association — Compound words formed with prefixes are mostly "closed" with few exceptions.
PUBLICATION MANUAL OF THE AMERICAN PSYCHOLOGICAL ASSOCIATION (APA) p.97
| PREFIXES | HYPHENATED | ONE WORD |
|---|---|---|
mini, multi, non, over, phobia, post, pre, pro, pseudo, quasi, re, semi socio, sub, super, supra, ulta, un, under |
Most prefixes are usually one word. |
minisession, multiphase, nonsignificant, overaggressive, agora phobia, quasiperiodic, reevaluate, semidarkness, socioeconomic, subtest, superordinate, supraliminal, ultrahigh, unbiased, underdeveloped |
OCCURENCE 1 A compound is which the word is capitalized, a numer, an abbreviation, more than one word |
pro-British, post-911, pre-UCB application, non-native-language-students |
|
OCCURENCE 2 All self- compounds |
self-test, self-motivated, self-esteems |
|
OCCURENCE 3 Words that could be misunderstood |
re-pair, re-form, un-ionized |
|
OCCURENCE 4 Words in which the prefix ends and the base word begins with the same vowel. |
meta-analysis, anti-intellectual, co-occur |
BUT NOT RE- reevaluate |
Resources:
- Publication Manual of the American Psychological Association. 6th ed. Washington, D.C: American Psycological Association, 2010. Print.
- AP Stylebook. The Associated Press Stylebook and Briefing on Media Law. 42nd ed. New York: Basic Books, 2007. Print.
- AP Stylebook. 2010. Web. http://www.apstylebook.com/
- The Chicago Manual of Style. 15th ed. Chicago: The University of Chicago Press, 2003. Print.
- The Chicago Manual of Style Online. 2010. Web. http://www.chicagomanualofstyle.org
- The Gregg Reference Manual by William A. Sabin.10th edition. New York: McGraw-Hill/Irwin, 2005. Print
Hyphens - Capitalization
Capitalization of Hyphenated Words in Titles, Headings and Headlines
There is variation on minor points. Choose a style and carry it through your writing. See comparisons in chart below.
| STYLE MANUAL | RULES |
|---|---|
Commonly Used Rule |
(1) Capitalize the second word in compound words if it is a noun or proper adjective or the words have equal weight (Cross-Reference, Pre-Microsoft Software, Run-Time); (2) Do not capitalize the second word if it is another part of speech or a participle modifying the first word (How-to, Take-off, Flat-sided, Gun-toting). |
1) AP |
Headlines: Only the first word and proper nouns are capitalized. Use numerals for all numbers and single quotes for quotes. (p. 112) (Online: AP systems convert headlines a version will all words capitalized.) |
2) Gregg |
"In a heading or title, capitalize all the elements except articles (a, an, and the), short prepositions (at, by, for, in, of, off, on, out, to, and up), and short conjunctions (and, as, but, if, or, and nor)." |
3) MLA |
MLA style has its own rules for capitalizing headings and titles. “The rules for capitalizing titles are strict. In a title or a subtitle, capitalize the first word, the last word, and all principal words, including those that follow hyphens in compound terms” (Gibaldi 103). These are commonly referred to as heading caps. Do not capitalize the following unless they begin or end a title, or follow a colon: (1) Articles: a, an, the; (2) Prepositions: against, between, in, of , to; (3) Conjunctions: and, but, for, nor, or, so, ye.; (4) Infinitive: to. |
4a) CMOS Simple |
Capitalize only the first element unless any subsequent element is a proper noun or adjective. |
4b) CMOS Traditional |
(1) Always capitalize the first element; (2) Capitalize any subsequent elements unless they are articles, prepositions, coordinating conjunctions (and, but, for, or, nor) or such modifiers as flat or sharp following musical key symbol; (3) If the first element is merely a prefix or combining form that could not stand by itself as a word (anti, pre, etc.), do not capitalize the second element unless it is a proper noun or proper adjective; (4) Do not capitalize the second element in a hyphenated spelled-out number (twenty-one, etc); (5)Break a rule when it doesn't work. |
- The Associated Press. The Associated Press Stylebook and Briefing on Media Law. 42 Edition. New York: Basic Books, 2007, p.112.
- Sabin, William A. The Gregg Reference Manual. 10th edition. New York: McGraw-Hill/Irwin, 2005, pp. 117-118
- Gibaldi, Joseph, MLA Handbook for Writers of Research Papers. 6th ed. New York: MLA, 2003. <www.mla.org>
- University of Chicago Press. The Chicago Manual of Style. 15th edition. Chicago: University of Chicago Press, 2003, pp. 367-368. <www.chicagomanualofstyle.org>
Capitalization of Hyphenated Words in Titles or Headings
Comparison
| GREGG | AP and CMOS – Simple | CMOS – Traditional |
|---|---|---|
CAPITALIZE FIRST ELEMENT |
CAPITALIZE FIRST ELEMENT |
CAPITALIZE FIRST ELEMENT |
Cross-Country Skiing |
Cross-country Skiing |
Cross-Country Skiing |
Self-Actualization Workshop |
Self-actualization Workshop |
Self-Actualization Workshop |
CAPITALIZE SECOND ELEMENT - if not article, short preposition or conjunction |
Generally, doesn't capitalize second element. |
CAPITALIZE SECOND ELEMENT - if not article, prep, conjunction or musical flat |
Ever-Present Road Congestion |
Ever-present Road Congestion |
Ever-Present Road Congestion |
President-Elect Barack Obama |
President-elect Barack Obama |
President-Elect Barack Obama |
City-States in Nineteenth Century Europe |
City-states in Nineteenth Century Europe |
City-States in Nineteenth Century Europe |
A Series of Web-Based Courses |
A Series of Web-based Courses |
A Series of Web-Based Courses |
Cutting-Edge Nanotechnology |
Cutting-edge Nanotechnology |
Cutting-Edge Nanotechnology |
Self-Sustaining City of the Future |
Self-sustaining City of the Future |
*Self-Sustaining City (participles often lowercase) |
Full-Fashioned Clothing |
Full-fashioned Clothing |
Full-Fashioned Clothing (participles often lowercase) |
Over-the-Counter Testing Kits |
Over-the-counter Testing Kits |
BUT: Over-the-Counter Testing Kits (article) |
Bread-and-Butter Basics |
Bread-and-butter Basics |
BUT: Bread-and-Butter Basics (conjunction) |
E-Flat Minor Melody |
E-flat Minor Melody |
BUT: E-flat Minor Melody; (flat – sharp) |
|
CAPITALIZE SECOND ELEMENT –if a proper noun or proper adjective |
CAPITALIZE SECOND ELEMENT – if a proper noun or proper adjective |
Franco-American Studies Center |
Franco-American Studies Center |
Franco-American Studies Center |
Anti-American Protestors Storm Embassy |
Anti-American Protestors Storm Embassy |
Anti-American Protestors Storm Embassy |
Nonsteroidal Anti-Inflammatory Drugs |
BUT: Nonsteroidal Anti-inflammatory Drugs |
BUT: Nonsteroidal Anti-inflammatory Treatments |
Pro-Reagan Viewpoints (proper noun) |
Pro-Reagan Viewpoints (proper noun) |
Pro-Reagan Viewpoints (proper noun) |
Pro-life Viewpoints (Hyphenate when coining words that denote support for something.) |
BUT: Prolife Viewpoints (closed in CMOS; hyphenated in AP) |
BUT: Prolife Viewpoints (not a proper noun) |
|
|
DO NOT CAPITALIZE – spelled out number (21-99) |
Fifty-Piece Orchestra Plays Sold-out Hall |
Fifty-piece Orchestra Plays Sold-out Hall |
Fifty-Piece Orchestra Plays Sold-out Hall |
Fifty-One Violinists Compete for Title |
Fifty-one Violinists Compete for Title |
BUT: Fifty-one Violinists Compete (spelled number) |
|
|
BREAK RULES –if consistent look is needed |
|
|
*Twenty-First-Century Furnishings ("first" if lowercase, would look inconsistent) |
*Hand-me-downs (lowercase short unstressed elements) |
||
*Write-ins and Cross-outs (lowercase short unstressed elements) |
Common Mistakes (in Titles or Headlines)
Before capitalizing words in a title or headline, check in the dictionary to see if a word should be hyphenated.
| ERROR | FIX |
|---|---|
Micro-Chip to Track HIV-Postive Residents (not micro-chip) |
Microchip to Track HIV-Postive Residents (microchip is one word) |
Non-Native Speakers of English |
Nonnative Speakers of English |
Online Resources:
- AP Stylebook. The Associated Press Stylebook and Briefing on Media Law., http://www.apstylebook.com/
- CMOS, The Chicago Manual of Style. http://www.chicagomanualofstyle.org
- Carnegie Mellon. "Capitalization." http://www.cmu.edu/styleguide/capitalization.html#hyphen
- Accu-Assist.Summary: "Capitalization in Titles and Headings — Hyphenated Words." http://www.accu-assist.com/grammar-tips-archive/GrammarTip_capitalization-titles-headings-hyphenated-words.htm
Practice 1
Learning Online
- Select the response with the punctuation that best completes the sentence.
- Compare your response with the answer.
Practice 2
Capitalizing Headlines
- Select a correct way to capitalize each headline.
- Use the traditional rules from the Chicago Manual of Style above. (CMOS 8.170)
