Phrase guide

red box

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

noun

Meaning 1

A phreaking device that generates tones to simulate the insertion of coins into a payphone, thus enabling the user to make illegitimate free calls.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A secure briefcase-like box used by ministers in the British government to carry their documents.

Definition source: English Wiktionary via Wiktextract

Usage: UK

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ministerial box

Antonyms: none provided

3

noun

Meaning 3

A safe located at a nuclear installation containing launch codes.

Definition source: English Wiktionary via Wiktextract

Usage: US

Topics: government, military, politics, war

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A "tornado watch" notification, indicating that conditions might lead to a tornado though none has yet been sighted.

Definition source: English Wiktionary via Wiktextract

Usage: US, informal

Topics: climatology, meteorology, natural-sciences

Examples

  • See also: severe thunderstorm watch

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.