buildup

1 of 2

noun

build·​up ˈbild-ˌəp 

1

: something produced by building up

fluid buildup in the lungs

2

: the act or process of building up

build up

2 of 2

verb

built up; building up; builds up

transitive verb

1

: to develop gradually by increments

building up endurance

built up a library

2

: to promote the health, strength, esteem, or reputation of

intransitive verb

: to accumulate or develop appreciably

builder-upper

ˈbil-dər-ˈə-pər 

noun

Synonyms of buildup

Verb

• increase
• rise
• accelerate
• swell
• expand
• climb
• roll up

Examples of buildup in a Sentence

Noun

There is a big traffic buildup on the highway.

You should clean the mechanism regularly to prevent buildup of dirt.

Both players were given big buildups before the game.

Verb

static electricity built up on the cat's fur

the roller coaster built up momentum

Recent Examples on the Web

Noun

Reuters — Japan’s government is portraying its accelerating military buildup not only as ​a way to protect the country but as a route to greater prosperity, arguing in ‌its latest defence white paper that arms production can support economic growth. — Reuters, CNN Money, 4 Aug. 2026

The buildup in bearish bets comes after a stunning reversal for one of the year's hottest debuts. — Yun Li, CNBC, 3 Aug. 2026

Verb

Government reshuffle Ahead of the next winter period, Ukraine is strengthening the defense of its energy infrastructure and building up reserves to ensure sufficient supplies of heat and electricity. — Sam Meredith, CNBC, 3 Aug. 2026

China has worked its way into all sorts of local systems to build up its influence. — Natalia Cote-Muñoz, Foreign Affairs, 3 Aug. 2026

Word History

First Known Use

Noun

1926, in the meaning defined at sense 1

Verb

1555, in the meaning defined at transitive sense 1

Rhymes for buildup

• backup
• blowup
• breakup
• checkup
• cleanup
• holdup
• hookup
• lineup
• lockup
• makeup
• markup
• pickup

Kids Definition

buildup

noun

build·​up ˈbil-ˌdəp 

1

: something produced by building up

2

: the act or process of building up