number ten

High
UK/ˌnʌm.bə ˈten/US/ˌnʌm.bɚ ˈten/

Informal (slang for top quality), Formal (political reference to 10 Downing Street), Neutral (numerical reference).

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Definition

Meaning

The number 10; the specific numerical figure between 9 and 11.

Used metaphorically to refer to something or someone of the highest quality, the best, or as a slang term for a perfect 'ten' in attractiveness. Often used as "Number 10" or "No. 10" to refer to 10 Downing Street, the official residence and office of the British Prime Minister.

Linguistics

Semantic Notes

The term shifts dramatically in meaning and formality depending on context: purely numerical (neutral), evaluative slang (very informal), or a political metonym (formal). As a slang term for perfection, it is often used without 'number', simply as 'a ten'.

Dialectal Variation

British vs American Usage

Differences

In British English, "Number Ten" or "No. 10" is a powerful political metonym for the Prime Minister and their office. In American English, this specific political reference is absent, though understood in international news. The slang use meaning 'perfect' is common in both varieties.

Connotations

UK: Strongly associated with government, power, and political decision-making. US: Primarily associated with a top score or high rating, with no inherent political meaning.

Frequency

The political sense is high-frequency in UK media and political discourse, rare in US contexts. The slang sense is common in both.

Vocabulary

Collocations

strong
downing streetperfect tenprime ministerscored a ten
medium
live at number tena solid tenpolicy from number tenrated a ten
weak
number ten applicantnumber ten housenumber ten candidate

Grammar

Valency Patterns

[Subject] is a (perfect) ten.The announcement came from Number Ten.She scored a ten on the parallel bars.They rated it a ten.

Vocabulary

Synonyms

Strong

perfectthe bestflawlesstop-notchexemplary

Neutral

ten10decimal base

Weak

excellentgreatsuperboutstanding

Vocabulary

Antonyms

zerooneawfulterriblethe worst

Phrases

Idioms & Phrases

  • A perfect ten
  • She's a ten
  • Take it down to a ten (calm down)
  • Behind the black door of Number Ten

Usage

Context Usage

Business

Rare, except in ratings: 'We aim for a ten in customer satisfaction.'

Academic

Rare, except in mathematics or as a political science reference: 'The power of Number Ten has evolved.'

Everyday

Common for ratings and scores: 'That meal was a ten!' Also used when discussing UK politics.

Technical

In sports like gymnastics or diving, it denotes a perfect score. In politics, it's a specific institutional term.

Examples

By Part of Speech

verb

British English

  • The PM will number-ten the proposal tomorrow.
  • They've been number-tenning that issue for weeks.

American English

  • (This verbal use is extremely rare and non-standard in AmE.)

adverb

British English

  • (Rarely used as an adverb.)

American English

  • (Rarely used as an adverb.)

adjective

British English

  • A Number Ten spokesperson denied the claim.
  • It was a real number-ten performance.

American English

  • She gave a ten-worthy presentation.
  • He's in the ten club for sales.

Examples

By CEFR Level

A2
  • I have number ten. (holding up fingers)
  • My house is number ten.
B1
  • The footballer wears the number ten shirt.
  • On a scale of one to ten, I give it a ten!
B2
  • The statement from Number Ten clarified the new policy.
  • Critics argue that Number Ten has lost control of the narrative.
C1
  • The scandal has severely damaged the credibility of the Number Ten operation.
  • Her latest novel is a literary ten, combining exquisite prose with profound insight.

Learning

Memory Aids

Mnemonic

Imagine a door with a big number '10' on it. In the UK, it's the door to power (10 Downing Street). Everywhere, if you walk through that door, you find something perfect, 'a ten'.

Conceptual Metaphor

QUALITY IS A NUMBER ON A SCALE (where 10 is the top). INSTITUTION IS ITS ADDRESS (The UK government is 'Number Ten').

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not literally translate 'Number Ten' as 'Номер десять' when referring to the British government; use 'Даунинг-стрит, 10' or 'резиденция премьер-министра'.
  • The slang 'a ten' is an idiom; translating word-for-word as 'десятка' may not convey the 'perfect' connotation without context.

Common Mistakes

  • Using 'number ten' formally to mean 'the tenth item' when 'item number ten' is clearer.
  • Capitalising it incorrectly: 'number Ten' (should be 'Number Ten' or 'No. 10' for the political entity).
  • Overusing the slang in formal writing.

Practice

Quiz

Fill in the gap
After the election, the new Prime Minister moved into .
Multiple Choice

In which context does 'a number ten' most likely refer to a political centre?

FAQ

Frequently Asked Questions

When referring specifically to 10 Downing Street (the office of the British Prime Minister), it is typically capitalized as 'Number Ten' or 'No. 10'. When used as slang or a simple number, it is not.

Generally, no. 'A ten' as slang for something perfect is informal. In formal contexts, use words like 'perfect', 'exemplary', or 'flawless' instead.

Yes, in international politics and media, 'Number Ten' or 'Downing Street' is widely recognised as a metonym for the UK Prime Minister and their office, similar to 'the White House' for the US President.

As a numeral, they are the same. However, 'number ten' can be the specific label for something (e.g., shirt number, house address). 'Ten' alone is more common for counts, scores, and the informal 'perfect ten' slang.