English · Slang Attested

big iron

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

Both English Tiếng Việt

Meaning · English

Large, expensive, powerful computers such as mainframes.

Nghĩa · Tiếng Việt

Máy tính lớn, đắt tiền, mạnh mẽ như máy chủ

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).

Topics: Dated

Common questions

What does “big iron” mean?

Large, expensive, powerful computers such as mainframes.

Is “big iron” formal or informal?

big iron is generally dated, humorous, slang.

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