English Reference

Word

dummy

Phoneticsdum·my, stress on the first syllable

US/ˈdəmi/

UK/dˈʌmi/

Definitions

01a model of a person

B1 · Intermediate Countable noun

n. a model that looks like a person, used for displaying clothes or in safety tests.

n. a physical representation of a human being, often used for garment display or as a proxy in crash testing.

“The shop window had a dummy wearing a bright red winter coat.”

“Engineers placed a crash-test dummy in the driver's seat to measure the impact of the collision on a human frame.”

02a stupid person

B2 · Upper Intermediate Countable noun Informal

n. an insulting word for someone you think is stupid.

n. a pejorative term for a person perceived as unintelligent or slow-witted.

“I felt like such a dummy when I realized I had my shirt on backwards.”

“He was tired of being treated like a dummy by his colleagues just because he lacked a formal degree.”

Synonyms

idiotfoolblockhead

Antonyms

03a baby's pacifier

B1 · Intermediate Countable noun British English

n. a rubber or plastic object that a baby sucks on to stay calm.

n. a rubber or silicone teat given to an infant to soothe them through the sucking reflex.

“The baby stopped crying as soon as his mother gave him his dummy.”

“Pediatricians often debate the long-term effects of prolonged dummy use on a child's dental development.”

Synonyms

pacifiersoother

04a fake move in sports

B2 · Upper Intermediate Countable noun Sports

n. a move where you pretend to pass or kick the ball to trick the other team.

n. a deceptive move or feint intended to mislead an opponent regarding one's next action.

“The striker sold the defender a dummy and ran straight toward the goal.”

“By selling the goalkeeper a dummy, the forward created enough space to slot the ball into the bottom corner.”

Synonyms

feintfakedodge

05a placeholder

C1 · Advanced Countable noun Computing Technical

n. a fake object or word used temporarily until the real one is ready.

n. a non-functional or placeholder element used in place of a functional one for testing or structural purposes.

“The designer used dummy text to see how the layout would look.”

“The programmer inserted a dummy variable to ensure the function would compile while the database was still offline.”

Usage

Often used as an attributive noun, as in 'dummy variable' or 'dummy text'.

06grammar placeholder

C2 · Proficiency Countable noun Linguistics Academic · Technical

n. a word like 'it' or 'there' that fills a space in a sentence but has no real meaning.

n. an expletive or pleonastic word that serves a purely structural role in a sentence without carrying semantic content.

“In the sentence 'It is raining', the word 'it' is a dummy subject.”

“The use of a dummy auxiliary, such as 'do' in English questions, is a distinctive feature of the language's syntax.”

Synonyms

expletiveplaceholder

07to create a prototype

C1 · Advanced Technical

v. to make a simple, fake version of something to show how it will work.

v. to create a mock-up or non-functional prototype of a product or document.

“We need to dummy up the book cover before we send it to the printer.”

“The architects dummied up a cardboard model to demonstrate the scale of the atrium to the investors.”

Synonyms

08extremely

C1 · Advanced American English · Slang

adv. a slang word used to mean 'very' or 'extremely'.

adv. an intensifier used to emphasize the degree of an adjective.

“That new video game is dummy hard to beat.”

“The concert was dummy loud, and my ears were ringing for hours afterward.”

Synonyms

Real-World Examples

“This included training on dummies and CPR practice.”
BBC News 13 Sept 2026
“My dummy account, Mohammed, was a profile set to private and designed to look similar to the accounts of younger Moroccan people who were liking and commenting on the posts advertising crossings.”
BBC News 14 Aug 2026

Etymology

From dumb + -y. Pacifier sense from dummy teat where dummy is in the sense of a nonfunctional replica.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Idioms

In Music

Cover of Dummy by Portishead

Cover shown under fair use for identification and commentary.

Dummy · 1994 · Trip hop

Artist:
Portishead

Portishead's 1994 debut album helped make trip hop popular, and it won the 1995 Mercury Music Prize. The title uses dummy in its sense of a model of a person.

Domains

LinguisticsProgrammingSports

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
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference