English Reference

Word

bias

US/ˈbaɪəs/

UK/bˈaɪəs/

Definitions

01prejudice or unfair preference

B2 · Upper Intermediate Countable noun

n. a tendency to prefer one person or thing over another, often in a way that is unfair.

n. a systematic prejudice or inclination for or against one person, group, or idea, typically in a manner considered to be unfair or subjective.

“The reporter was accused of bias because he only interviewed people from one political party.”

“The study was criticised for selection bias, as the researchers only recruited participants who already had a positive view of the product.”

Synonyms

prejudicepartialityleaning

02diagonal fabric direction

C1 · Advanced Uncountable noun Technical

n. a diagonal line across a piece of woven cloth.

n. the diagonal direction of a woven fabric, 45 degrees to the warp and weft threads, providing more stretch and drape.

“The dress was cut on the bias so that the fabric would flow beautifully over her body.”

“Tailors often cut silk on the bias to exploit the natural elasticity of the weave, ensuring the garment contours to the wearer's figure.”

Usage

often used in the phrase 'on the bias'

Synonyms

03statistical error

C1 · Advanced Uncountable noun Science Academic · Technical

n. a systematic error in a study that makes the results inaccurate.

n. the difference between an estimator's expected value and the true value of the population parameter being estimated.

“The survey had a clear bias because it only asked people who lived in expensive areas.”

“To eliminate observer bias, the clinical trial utilised a double-blind methodology where neither the patients nor the doctors knew who received the treatment.”

Synonyms

Antonyms

04electronic voltage

C2 · Proficiency Uncountable noun Computing Technical

n. a steady voltage or current applied to a device to help it work correctly.

n. a fixed DC voltage or current applied to a terminal of an electronic component to establish its operating point.

“The engineer adjusted the bias of the transistor to improve the sound quality of the amplifier.”

“Incorrect bias settings in the vacuum tube stage resulted in significant harmonic distortion during high-gain passages.”

05K-pop favourite

B1 · Intermediate Countable noun Music Slang · Informal

n. your favourite member of a music group, especially a K-pop band.

n. a term used within fandoms to identify an individual's preferred member of a musical group.

“I love the whole group, but Jungkook is definitely my bias.”

“Fans often collect photocards specifically of their bias to trade with other members of the community.”

Synonyms

06to influence unfairly

B2 · Upper Intermediate

v. to influence someone or something so they are no longer neutral.

v. to cause a person or process to have a prejudice or to be unfairly influenced.

“The judge warned the jury not to let the media reports bias their decision.”

“The wording of the questionnaire was found to bias the respondents toward a specific, predetermined conclusion.”

07diagonal

C1 · Advanced Technical

adj. slanting or diagonal, especially when talking about cloth.

adj. cut or positioned diagonally across the grain of a fabric.

“She used a bias binding to finish the curved edges of the quilt.”

“The designer preferred a bias cut for the evening gowns to achieve a more fluid silhouette.”

Synonyms

slantingobliquediagonal

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “bias” in context.

Verb

01. avoid bias

“Researchers must use double-blind studies to avoid bias in their results.”

verb + noun

02. introduce bias

“Leading questions can introduce bias into a witness's testimony.”

verb + noun

03. reduce bias

“The new hiring software is designed to reduce bias during the recruitment process.”

verb + noun

04. reflect bias

“The media coverage seemed to reflect bias against the local government.”

verb + noun

Adjective

05. cultural bias

“Standardized tests are often criticized for containing cultural bias.”

adj + noun

Noun

06. bias exist

“We need to acknowledge that unconscious bias exists in every workplace.”

noun + verb

Real-World Examples

“With anything, when you're in a group, you have that in-group bias.”
Phys.org 9 Oct 2026
“So, in a real game, there may not be a huge practical difference between using fair dice and dice that have a small bias.”
Ars Technica 29 May 2025
“He didn’t want to introduce bias into his decision-making.”
The Guardian 5 Sept 2026
“Surprisingly, education and intelligence do not protect us against the bias.”
BBC 17 Feb 2020

Word family

NOUN

bias(B2)

ADJECTIVE

Domains

ElectronicsSportsStatistics

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Common
Level
B2 · Upper IntermediateOxford
Updated

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