build up

British  

verb

1. (tr) to construct gradually, systematically, and in stages

2. to increase, accumulate, or strengthen, esp by degrees

   the murmur built up to a roar

3. (intr) to prepare for or gradually approach a climax

4. (tr) to improve the health or physique of (a person)

5. (tr, usually passive) to cover (an area) with buildings

6. (tr) to cause (a person, enterprise, etc) to become better known; publicize

   they built several actresses up into stars

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noun

1. progressive increase in number, size, etc

   the build-up of industry

2. a gradual approach to a climax or critical point

3. the training and practice that constitutes the preparation for a particular event or competition

   the team's Olympic build-up

4. extravagant publicity or praise, esp in the form of a campaign

5. military the process of attaining the required strength of forces and equipment, esp prior to an operation

build up Idioms  

1. Fill an area with houses or other buildings, urbanize. For example, We want to protect the wetlands against those who want to build up the area . [c. 1400]

2. Gradually develop, increase in stages. For example, I want to build up my endurance for the race . [Early 1700s]

3. Accumulate or collect, as in A lot of rust has built up on the farm machinery . [Mid-1900s]

4. Increase, strengthen, develop toward, as in The sound built up until it was nearly deafening , or His argument was building up to a grand climax . [c. 1930]

5. Establish or enhance a reputation; praise or flatter. For example, Months before the official campaign could begin, they had been building up the senator's image . [c. 1930]

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Example Sentences

It can cause plaque to build up in blood vessels and is linked to heart disease.

From The Wall Street Journal • May 27, 2026

The review also explains that senescent cells build up in many specialized cell types, including hepatocytes, endothelial cells, fibroblasts, macrophages, astrocytes, and epithelial cells.

From Science Daily • May 22, 2026

Over sushi and spicy margaritas at Wabi on Rose, a longtime friend advised me about how to give your husband wins, build up his self-esteem and keep from overwhelming him with perceived demands.

From Los Angeles Times • May 22, 2026

Levels can build up quickly in the air without adequate ventilation.

From BBC • May 18, 2026

The Geats build up the fire, prepare to sleep.

From "Grendel" by John Gardner

Related Words

• add to
• boost
• develop
• enhance
• expand
• fortify
• improve
• increase
• intensify
• promote
• reinforce
• strengthen