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sure up

B2 informal separable transitive
In simple words

To make something weaker more stable and strong so it doesn't fail or collapse.

Literal meaning: To make sure (something is) up (to strength) — though etymologically derived from 'shore' (a supporting timber).

Meanings

1 B2 idiomatic informal

To strengthen or reinforce something that is weak or at risk of failing — especially a structure, system, or relationship.

"They hired a consultant to sure up the company's finances before seeking new investors."

Grammar: separable
2 B2 idiomatic informal

To provide support to something or someone that is vulnerable, in order to prevent deterioration or collapse.

"The government tried to sure up public confidence by announcing a new economic package."

Grammar: separable
Usage notes

'Sure up' is a very common spelling error or pronunciation variant of 'shore up.' Both are used, but 'shore up' is the standard, correct form. ESL learners should be aware that 'sure up' is widely seen in informal digital communication (social media, forums) despite being non-standard. The meaning is identical to 'shore up.'

Commonly used with

support defenses finances position relationship foundation

Forms

Base
sure up
I/you/we/they
3rd person
sures up
he/she/it
Past simple
sured up
yesterday
Past participle
sured up
have + pp
-ing form
suring up
continuous

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