

Hyphen Rules and When to Use Them in English Grammar
Hyphens are small punctuation marks used to join words and break them at the end of a line. Learning how to use hyphens in English helps you write clearer sentences, avoid common mistakes, and score better in exams. Hyphenation is important in grammar, daily writing, and competitive tests.
Hyphen Use | Example | Meaning |
---|---|---|
Compound adjective | well-known author | An author who is famous |
Compound number | twenty-one students | The number 21 |
Prefix | re-enter | Enter again |
Breaking a word | infor- mation |
Word split at end of line |
What is a Hyphen?
A hyphen (-) is a punctuation mark in English grammar. It is used to join words together or break a word at the end of a line. It is shorter than a dash and helps to avoid confusion in sentences.
Purpose and Usage of Hyphens in English
Hyphens connect two or more words. They are used in compound adjectives (blue-eyed boy), compound numbers (forty-two), and with some prefixes (ex-president). A hyphen also breaks a word at the end of a sentence line in books or exams.
- To form compound adjectives: a part-time job
- To join compound numbers: fifty-six
- To join some prefixes: self-made, ex-student
- To split words at line breaks
Hyphen Rules in English Grammar
Following hyphen rules makes your writing clear. Use these points to understand when to use a hyphen:
Compound Adjectives
Use a hyphen when two or more words jointly describe a noun before it. Example: a well-written essay. But don’t hyphenate if the phrase comes after the noun. Example: Her essay was well written.
Compound Numbers
Numbers from twenty-one to ninety-nine should be hyphenated. Example: sixty-seven children.
Prefixes and Suffixes
Use hyphens with prefixes like self-, ex-, and all-. Example: self-control, ex-player. Also, use a hyphen to avoid double vowels or confusing words, like re-enter, re-sign (sign again) vs. resign (to quit).
Avoiding Ambiguity
Sometimes, a hyphen is needed for clarity. Example: small-business owner (someone who owns a small business) versus small business owner (could mean a physically small owner).
Breaking Words at Line End
When writing by hand or in exams, you may use a hyphen to divide a long word at the end of a line. Always break between syllables, not in the middle of a letter cluster.
Hyphen vs Dash: What’s the Difference?
Punctuation | Symbol | Use | Example |
---|---|---|---|
Hyphen | - | Joins words | well-known |
En Dash | – | Ranges, connections | 2010–2020 |
Em Dash | — | Breaks, emphasis | She left—no one saw her. |
Examples of Hyphenated Words
- Compound adjectives: red-hot, state-of-the-art, five-year-old
- Compound numbers: twenty-five, eighty-eight
- Prefixes: re-enter, ex-president, self-esteem
- Line-break: in-terest, or-gan-ize
Common Mistakes with Hyphens
Many students use hyphens where they are not needed or forget them in compound adjectives. Don’t use a hyphen with adverbs ending in -ly (correct: highly qualified teacher, not highly-qualified teacher). Proofread your writing for consistency.
Practice Exercise: Add the Hyphen
Sentence | Correct Form |
---|---|
She is a well known singer. | She is a well-known singer. |
I bought forty five oranges. | I bought forty-five oranges. |
My mother in law is visiting. | My mother-in-law is visiting. |
We had a face to face meeting. | We had a face-to-face meeting. |
Why Learn Hyphens? – Use in School, Exams, and Daily English
Knowing hyphen rules helps in school assignments, grammar exams, and everyday English. Proper punctuation makes your writing clear and avoids mistakes. Vedantu explains these rules in a simple way for quick learning and exam practice.
Related Grammar Topics for More Practice
- Introduction to Punctuation
- Full Stop
- Exclamation Mark
- Quotation Marks
- Compound Adjectives
- Introduction to Preposition
- Order of Words in a Sentence
- Basics of Grammar
- Grammar and Punctuation for Kids
- Apostrophe
- Capital Letters
In summary, hyphens in English grammar join words, form compound adjectives and numbers, and break words at line ends. Correct hyphen usage improves clarity in writing and helps in exams. Practise these rules with Vedantu for strong grammar and better writing skills.
FAQs on What Is a Hyphen? Definition, Uses, and Examples
1. What is a hyphen in English grammar?
A hyphen (-) is a punctuation mark used to join words, create compound words or phrases, and split words across lines in English. It's crucial for clear communication and correct writing, especially in formal contexts like exams.
2. What is the difference between a hyphen and a dash?
Hyphens (-) are short and connect words or parts of words (e.g., well-known, mother-in-law). Dashes (– or —) are longer and indicate a break in thought, a pause, or extra emphasis. Understanding the difference is key for punctuation in English.
3. What are hyphenated words? Give examples.
Hyphenated words are two or more words joined together with a hyphen. Common examples include compound adjectives (twenty-one, self-esteem), compound nouns (daughter-in-law), and words with prefixes (re-enter). Mastering hyphenation is essential for correct grammar and spelling.
4. When should I use a hyphen?
Use hyphens in compound adjectives preceding a noun (well-known author), with compound numbers (twenty-five), to avoid ambiguity (re-creation vs. recreation), and with some prefixes (pre-existing conditions). Remember hyphen rules for improved grammar.
5. What are some common mistakes with hyphens?
Common mistakes include confusing hyphens with dashes or minus signs, incorrect hyphenation of compound adjectives, and inconsistent hyphen use with prefixes. Careful proofreading and a strong understanding of hyphen rules are necessary to avoid these errors in writing.
6. Which symbol is a hyphen?
The hyphen symbol is a short dash: -. It's different from a longer en dash (–) or em dash (—), and also different from a minus sign (−) used in math. Recognising the visual difference is vital for accurate writing and proofreading.
7. What is hyphenation with example?
Hyphenation is the process of joining words or parts of words with a hyphen. For example, 'well-being' is a hyphenated word, while 'well known' (without a hyphen) would be incorrect as a compound adjective before a noun.
8. What are compound adjectives?
Compound adjectives are two or more words used together to modify a noun. They are often hyphenated, especially when they come before the noun they modify. Examples include long-term effects, state-of-the-art technology, and five-year-old child.
9. What is the difference between hyphen and dash? How to use them correctly?
Hyphens (-) are shorter and join words or parts of words, such as compound adjectives (high-quality) or to avoid ambiguity. Dashes (– or —) are longer and show a break or interruption. Em dashes (—) are even longer and show a greater break.
10. How to use a hyphen in compound numbers?
Use hyphens in compound numbers from twenty-one to ninety-nine (twenty-one, thirty-two, ninety-nine). This is a standard grammatical rule for clarity in writing. This rule also applies to fractions such as two-thirds.
11. Is hyphen owned by Kriti Sanon?
No, a hyphen is a punctuation mark and not owned by any individual. This is a common misunderstanding due to the unusual nature of the question.
12. Hyphen in grammar: When to use and when not to use?
Use hyphens to join words acting as a single adjective before a noun (well-behaved children), in compound numbers (twenty-three), and sometimes with prefixes to avoid confusion (re-enter). Avoid hyphens in established compound words (bookstore) or when words already function clearly without them.

















