English Reference

Word

increase

Phoneticsin·crease, stress on the first syllable

/ˈɪnˌkɹis/

Definitions

01to become larger

A2 · Elementary

v. to become larger in size, amount, or number.

v. to become progressively greater in size, amount, number, or intensity. This intransitive use focuses on the subject's growth.

“The population of the city started to increase rapidly after the new factory opened.”

“As global temperatures continue to rise, the frequency of extreme weather events is expected to increase significantly over the coming decades.”

Synonyms

02to make something larger

A2 · Elementary

v. to make something bigger or more.

v. to cause something to become greater in size, amount, or degree. This transitive use requires a direct object.

“The company decided to increase its prices by five percent this year.”

“The government implemented new tax incentives to increase private investment in renewable energy infrastructure across the country.”

Antonyms

03a growth or rise

A2 · Elementary Countable noun

n. a rise in the amount or size of something.

n. a rise in the amount, number, or degree of something; the act or process of becoming larger.

“There has been a steady increase in the number of people working from home.”

“Economists noted a sharp increase in consumer spending during the final quarter, despite the rising cost of living.”

Usage

Often followed by the preposition 'in' before a noun, or 'of' before a specific amount.

Pitfall

There was an increase of the price.

There was an increase in the price.

Use the preposition 'in' when describing the area or category that has grown.

Synonyms

04astronomy / waxing

C2 · Proficiency Science Literary · Technical

v. to show more of the bright surface of the moon.

v. to become more nearly full; to show more of the illuminated surface, as the moon does when moving toward its full phase.

“The moon will increase in brightness over the next few nights.”

“As the moon began to increase, the nocturnal visibility improved, allowing the astronomers to observe the lunar surface without heavy equipment.”

Synonyms

wax

Antonyms

wanedecrease

Collocations

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

01. actually increase 02. consequently increase 03. considerable increase 04. considerably increase 05. dramatically increase 06. exponentially increase 07. gradual increase 08. gradually increase 09. greatly increase 10. increase accuracy 11. increase amount 12. increase capacity

Real-World Examples

“Retail sales jumped 1.2% last month, the largest increase since March, after a revised 0.5% drop in July, the Commerce Department's Census Bureau said.”
Reuters 16 Sept 2026
“U.S. consumer prices accelerated in August, while a key measure of underlying inflation posted its largest increase in four months, reinforcing expectations that the Federal Reserve will raise interest rates next week.”
Reuters 11 Sept 2026
“U.S. producer prices increased in August amid higher costs of goods, airline fares and hospital services, boosting the chances of an interest rate hike from the Federal Reserve next week.”
Reuters 10 Sept 2026
“U.S. consumer inflation increased further in April, with the annual rate posting its largest gain in three years, heightening political risks for President Donald Trump and his Republican party ahead of November's midterm elections.”
Reuters 12 May 2026

Etymology

From Middle English encresen, borrowed from Anglo-Norman encreistre, itself from Latin increscere ("to grow upon"), formed from in- ("in, on") + crescō ("I grow"). The noun followed in Middle English as encres, taken directly from the verb.

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

Related words

Domain

Astronomy

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.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL 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: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Very common
Level
A2 · ElementaryOxford
Updated

QR code

englishreference.com/q/increase

English Reference