increase

American  

[in-krees, in-krees] / ɪnˈkris, ˈɪn kris /

verb (used with object)

increased, increasing

1. to make greater, as in number, size, strength, or quality; augment; add to.

   to increase taxes.

   Synonyms:

   prolong, extend, expand

   Antonyms:

   decrease

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verb (used without object)

increased, increasing

1. to become greater, as in number, size, strength, or quality.

   Sales of automobiles increased last year.

   Antonyms:

   wane, lessen, contract, abate, decrease

2. to multiply by propagation.

   Synonyms:

   swell, grow, expand, propagate

3. to wax, as the moon.

noun

1. growth or augmentation in numbers, size, strength, quality, etc..

   the increase of crime.

2. the act or process of increasing.

   Synonyms:

   expansion, enlargement

3. that by which something is increased.

4. the result of increasing.

5. produce of the earth.

6. product; profit; interest.

7. Obsolete.

   1. multiplication by propagation; production of offspring.

   2. offspring; progeny.

increase British  

/ ɪnˈkriːsɪdlɪ /

verb

1. to make or become greater in size, degree, frequency, etc; grow or expand

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noun

1. the act of increasing; augmentation

2. the amount by which something increases

3. increasing, esp becoming more frequent

Usage

What does increase mean? To increase is to become greater or more in number, amount, size, or in some other way, as in Our profits will increase as demand increases. As a verb, increase is also used in an active way in which someone or something is doing the increasing, as in I’m going to increase my hours at work or These sunglasses increase visibility. Increase can also be used as a noun referring to a rise or growth in something, as in We are experiencing an increase in applicants. It can also refer to the amount by which something has increased, as in The increase was $5,000 per year. The words increased and increasing can both be used as adjectives, as in an increased appetite or increasing sales. The opposite of increase as both a verb and a noun is decrease. Example: My boss increased my workload, which led to an increase in stress.

Other Word Forms

• increasable
  adjective
• increasedly
  adverb
• increaser
  noun
• nonincreasable
  adjective
• nonincrease
  noun
• preincrease
  verb (used with object)
• preincrease
  noun
• proincrease
  adjective
• quasi-increased
  adjective
• reincrease
  verb
• superincrease
  noun
• superincrease
  verb (used with object)
• unincreasable
  adjective
• unincreased
  adjective

Etymology

Origin of increase

First recorded in 1370–1395; Middle English incresen, encresen, from Anglo-French encres-, Middle French encreis(s)-, stem of encreistre, from Latin incrēscere, equivalent to in- in- ² + crēscere “to grow”; see crescent

Explanation

The noun increase indicates growth of something that gets bigger in number or volume. When used as a verb, it means the act of growing or gaining more. However it's used, it refers to something that has gotten bigger. Anything that can add on can increase. You can increase your speed to go faster, increase your strength by working out, increase your knowledge by studying, and increase your circle of friends by meeting more people. You can work harder to see an increase of profits, and you can prevent an increase in your electric bill by turning out unnecessary lights. And now you’ve increased your vocabulary by learning a new word!

Example Sentences

Last year, U.S. peer DoorDash agreed to acquire British food-delivery company Deliveroo in a cash deal for around 2.9 billion pounds to increase its global presence.

From The Wall Street Journal • May 25, 2026

Instead of permanently altering the cells, researchers used small-molecule drugs to temporarily increase NK cell activity.

From Science Daily • May 25, 2026

Wrexham council's tree and woodland strategy aims to increase urban tree cover to 20%.

From BBC • May 24, 2026

Expectations are for a 3.2% month-over-month jump in new orders for durable manufactured goods, after a 0.8% increase in March.

From Barron's • May 24, 2026

Adult-led learning situations may be able to tap into or approximate the multi-modality that may increase arts and learning connections for children.

From "Music and the Child" by Natalie Sarrazin

Related Words

• advance
• boost
• broaden
• build
• build up
• deepen
• develop
• double
• enhance
• enlarge
• escalate
• expand
• extend
• further
• heighten
• intensify
• multiply
• raise
• reinforce
• rise