English Reference

Word

cost

Phoneticscost

US/ˈkɑst/

UK/kˈɒst/

Irregular verb

Forms

Infinitive

cost

Past

cost

Past participle

cost

Definitions

01price of an item

A1 · Beginner Countable noun

n. the amount of money you need to pay to buy or do something.

n. the amount of money, time, or resources required to purchase or produce something.

“The cost of a new laptop has gone down recently.”

“The total cost of the renovation exceeded the initial budget by nearly twenty percent due to unforeseen structural issues.”

02negative consequence

B2 · Upper Intermediate Countable noun

n. the effort, loss, or suffering needed to achieve something.

n. the loss, sacrifice, or penalty incurred in the pursuit of an objective.

“He won the race, but the cost was a serious leg injury.”

“The environmental cost of rapid industrialisation is often overlooked in short-term economic forecasts.”

Antonyms

03to have a price

A1 · Beginner

v. to have a specific price or require a certain amount of money.

v. to require the payment of a specified sum or the expenditure of resources.

“How much does this shirt cost?”

“Maintaining a vintage sports car can cost thousands of dollars in specialised parts and labour every year.”

Synonyms

price atsell for

04to cause a loss

B1 · Intermediate

v. to cause someone to lose something valuable, like a job or a life.

v. to result in the loss or unpleasant sacrifice of something.

“One small mistake cost him his job at the bank.”

“The general's tactical error cost the lives of hundreds of soldiers during the retreat.”

Synonyms

05to estimate a price

C1 · Advanced Technical

v. to calculate how much a task or project will cost.

v. to estimate or calculate the likely cost of a project or service.

“We need to cost the project before we sign the contract.”

“The accountants spent three days costing the proposed expansion to ensure it was financially viable.”

Synonyms

Collocations

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

01. additional cost 02. considerable cost 03. economic cost 04. increase cost 05. low cost 06. outweigh cost 07. reduce cost 08. social cost 09. transaction cost 10. transport cost

Usage

Uncountable when referring to the general price of things; countable when referring to specific prices or expenses.

Pitfall

The cost of the car is very expensive.

The cost of the car is very high.

Things are expensive, but costs are high or low.

Confusables

cost vs price

Price is the amount a seller asks for; cost is the total amount spent to produce or obtain something.

RememberPrice is on the tag; cost is what you actually lose.

Word family

NOUN

Cost(A1)

ADJECTIVE

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.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL 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: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Frequency
Very common
Level
A1 · BeginnerOxford
Updated

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English Reference