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build up

B1 neutral separable both
In simple words

To slowly make something bigger, stronger, or more important.

Literal meaning: To construct something to a greater height — still valid in its literal sense.

Meanings

1 B1 neutral

To gradually increase or accumulate over time.

"Tension had been building up between the two departments for months."

Grammar: inseparable
2 B1 neutral

To develop or establish something, such as a business or reputation, over a period of time.

"She spent ten years building up a loyal customer base before opening a second location."

Grammar: separable
3 B2 idiomatic neutral

To make someone feel more confident or positive by praising or encouraging them.

"A good coach knows how to build players up rather than tear them down."

Grammar: separable
4 B2 idiomatic neutral

To publicize or promote something or someone extensively in advance.

"The film had been built up by the studio for months before its release."

Grammar: separable
Usage notes

One of the most versatile phrasal verbs in English. Used in physical (traffic builds up), emotional (tension builds up), commercial (build up a business), and interpersonal (build someone up) senses. The noun 'build-up' is also very common.

Commonly used with

confidence pressure tension muscles reputation speed business

Forms

Base
build up
I/you/we/they
3rd person
builds up
he/she/it
Past simple
built up
yesterday
Past participle
built up
have + pp
-ing form
building up
continuous

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