percent sign
B2Formal, Technical, Academic, Business, Everyday (written)
Definition
Meaning
The symbol '%' used to indicate a proportion out of one hundred.
The typographic character representing 'per centum' (by the hundred), used in mathematics, statistics, finance, and general notation to express percentages, rates, and proportions.
Linguistics
Semantic Notes
The term refers specifically to the symbol itself, not the concept of a percentage. It is a noun compound.
Dialectal Variation
British vs American Usage
Differences
In UK English, the term 'per cent sign' (two words) is also commonly used and accepted, though 'percent sign' is standard. In US English, 'percent sign' is almost exclusively used. The symbol is sometimes called the 'percentage sign' in both variants, though this is less precise.
Connotations
None.
Frequency
Equally frequent in technical and business writing in both variants. Slightly more common in US English overall due to the single-word preference aligning with 'percent'.
Vocabulary
Collocations
Grammar
Valency Patterns
The [number] is followed by a percent sign.Add a percent sign after the figure.The percent sign (%) indicates a percentage.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “No common idioms.”
Usage
Context Usage
Business
Used in financial reports, profit margins, discount rates, and growth figures (e.g., 'Revenue grew 5%).'
Academic
Used in statistical data, research results, and scientific notation to express ratios and concentrations.
Everyday
Used in shopping (discounts), recipes, battery charge indicators, and weather forecasts (chance of rain).
Technical
Used in programming (modulo operator in some languages), formatting codes, and typesetting specifications.
Examples
By CEFR Level
- The price has a 20% discount.
- My phone battery is at 50%.
- Remember to put a percent sign after the number in your answer.
- The interest rate is shown with a percent sign.
- In the formula, the cell should be formatted to automatically display a percent sign.
- The survey indicated a margin of error of ±3%.
- The data field validates numeric input and appends the percent sign upon tabbing out.
- Stylistically, some design guides recommend using the word 'percent' in prose and the symbol (%) in tables.
Learning
Memory Aids
Mnemonic
Think of the two circles in the % symbol as zeros, reminding you of the '100' in 'per cent' (per hundred).
Conceptual Metaphor
A CONTAINER FOR PROPORTION (the sign 'contains' the idea of a part per hundred).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not directly translate as 'знак процента' in every context; in running text, the English symbol often stands alone without the word 'sign' (e.g., 'a 10% increase').
- In Russian, a space is often used between the number and the symbol (10 %), whereas in English there is typically no space (10%).
Common Mistakes
- Writing 'per cent sign' as three separate words.
- Placing a space between the number and the symbol in English (e.g., '25 %').
- Confusing it with the permille sign (‰).
- Using 'percent' as a verb ('to percent something') is non-standard.
Practice
Quiz
What is the standard typographical convention for the percent sign in English?
FAQ
Frequently Asked Questions
In contemporary English, especially in technical, scientific, and business writing, no space is used (e.g., 25%). Some style guides for general prose may suggest using a space, but the no-space convention is dominant.
Yes, 'percentage sign' is understood and used, but 'percent sign' is the more precise and standard term, as it corresponds directly to the word preceding the symbol ('percent').
On most keyboards, it is created by pressing Shift + 5 on the number row.
No. While it often represents the modulo (remainder) operator (e.g., in C, Python, Java), it can also be used for string formatting or other functions. Its meaning is language-specific.