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Dictionary.com
Definitions

build up

VERB
amplify, advertise
Synonyms
STRONGEST
add to boost develop enhance expand fortify improve increase intensify promote reinforce strengthen
WEAK
extend heighten hype plug publicize puff spotlight
Antonyms
STRONGEST
decrease diminish discourage dissuade hurt injure lessen lower subtract undermine weaken worsen
WEAK
play down

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is one of the most heavily guarded sites in the country - but the alleged plotters are said to have been able to build up intelligence through insider information.

From BBC • Apr. 24, 2026

Borrowing is set to pick up again this year as governments build up their militaries and support households hit by the jump in energy prices.

From The Wall Street Journal • Apr. 23, 2026

I want to build up my emergency savings while raising my deductible.

From MarketWatch • Apr. 21, 2026

Some glaciers have thinned so much that they may no longer be able to build up enough ice to surge again.

From Science Daily • Apr. 17, 2026

I scraped them off, searched around for driftwood, and tried to build up the fire.

From "Black Star, Bright Dawn" by Scott O'Dell