English Reference

Word

plank

US/ˈpɫæŋk/

UK/plˈæŋk/

Definitions

01piece of wood

B2 · Upper Intermediate Countable noun

n. a long, flat, thick piece of wood used for building things like floors or fences.

n. a long, broad, and thick piece of timber, typically sturdier than a standard board.

“The workers laid down heavy wooden planks to create a temporary path across the mud.”

“The carpenter selected seasoned oak planks for the flooring to ensure the surface would not warp over time.”

Synonyms

02exercise

B2 · Upper Intermediate Countable noun Sports

n. an exercise where you hold your body straight and still while balancing on your hands or arms.

n. an isometric core strength exercise that involves maintaining a position similar to a push-up for the maximum possible time.

“She held a plank for two minutes as part of her morning workout.”

“Incorporating a three-minute plank into your daily routine can significantly improve core stability and posture.”

03political policy

C1 · Advanced Countable noun Law Formal

n. one of the main points or ideas in a political party's plan.

n. a fundamental component of a political platform or a specific policy within a party's programme.

“Improving the healthcare system was a central plank of their election campaign.”

“The proposed tax reform served as the primary plank of the opposition's economic strategy during the televised debate.”

04stupid person

C1 · Advanced Countable noun British English · Informal · Slang

n. a person who is very silly or not very smart.

n. a slang term for a person perceived as stupid or dim-witted.

“He forgot his keys for the third time this week—what a plank.”

“I felt like a total plank when I realized I had been arguing against a point that everyone else had already agreed on.”

Synonyms

idiotfooldimwit

05to pose rigidly

C2 · Proficiency Informal

v. to lie flat and stiff like a board in a strange place for a photo.

v. to perform the act of lying face down with a stiff body in an unusual or public location as a stunt.

“A few years ago, it was a popular trend to plank on top of famous statues.”

“The fad of planking in precarious locations eventually faded after several high-profile incidents involving public safety.”

Real-World Examples

“From push-ups and squats to planks and chin-ups, bodyweight training has become one of the most popular ways to exercise because it can be done anywhere – and it’s free.”
The Conversation 12 Oct 2025
“She attached each piece to a weight, and dragged the weight across a wooden plank.”
Science News Explores 25 May 2016

Related words

Idioms

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