one-eighty
B2-C1Informal, figurative
Definition
Meaning
A complete reversal or change of direction, attitude, or opinion.
The term can metaphorically describe a total turnaround in various contexts—from physical movement to personal growth or strategic decisions.
Linguistics
Semantic Notes
Derived from the idea of turning 180 degrees to face the opposite direction. Often implies a stark contrast between the original and new position.
Dialectal Variation
British vs American Usage
Differences
No significant lexical difference; both varieties use the term identically in informal contexts.
Connotations
Slightly more common in US sports commentary (e.g., skateboarding, basketball), but widely understood in both dialects.
Frequency
Moderately common in both varieties, with comparable frequency in media and casual speech.
Vocabulary
Collocations
Grammar
Valency Patterns
SUBJ + do/pull + a + one-eighty (on OBJ)SUBJ + perform + a + one-eightyVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “do a complete one-eighty”
Usage
Context Usage
Business
Used to describe a sudden change in corporate strategy or market position.
Academic
Rare in formal writing; may appear in social sciences discussing attitude shifts.
Everyday
Common in casual conversation about changes in behaviour or opinion.
Technical
In sports (e.g., skateboarding, snowboarding) to describe a 180-degree rotation.
Examples
By Part of Speech
adjective
British English
- That was a one-eighty move on the policy.
American English
- Her one-eighty opinion shift surprised everyone.
Examples
By CEFR Level
- He did a one-eighty and now loves the idea he hated before.
- The company's new marketing strategy is a complete one-eighty from their previous approach.
- After the scandal, the politician performed a remarkable one-eighty, embracing policies he had vehemently opposed.
Learning
Memory Aids
Mnemonic
Think of a compass needle spinning from North to South—a full half-circle reversal.
Conceptual Metaphor
CHANGE IS ROTATION / IDEA IS DIRECTION
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid literal translation 'сто восемьдесят' which refers only to the number. Use 'полный разворот' or 'резкая смена позиции'.
Common Mistakes
- Using '360' instead of '180' for a reversal (360 returns to the start).
- Using it as a verb without 'do' or 'pull' (e.g., 'He one-eightied' is non-standard).
Practice
Quiz
What does 'pull a one-eighty' typically express?
FAQ
Frequently Asked Questions
No, it's primarily informal and figurative, common in spoken and media English but rare in formal writing.
Not standardly. It's typically used as a noun in phrases like 'do a one-eighty' or 'pull a one-eighty'.
They are near-synonyms, but 'U-turn' is more literal (driving) and slightly more formal, while 'one-eighty' is more figurative and informal.
Because 180 degrees is half a circle—turning to face the exact opposite direction, which metaphorically represents a total reversal.
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