English · Phrasal verb Attested

strengthen up

In real, traceable use. Part of the curated seed collection; community review is coming.

Both English Tiếng Việt

Meaning · English

To become or make (something) stronger, tougher or more durable.

Nghĩa · Tiếng Việt

Trở nên hoặc làm cho một thứ gì đó mạnh mẽ hơn, cứng rắn hơn hoặc bền hơn

Machine-translated — suggest a fix

Where it’s used: Used American English

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “strengthen up” mean?

To become or make (something) stronger, tougher or more durable.

Is “strengthen up” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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