Standard Lemma guide

fireproof

adj · verb · 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.

  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: F AY1 ER0 P R UW2 F Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Resistant to damage from fire.

Definition source: English Wiktionary via Wiktextract

Examples

  • The fireproof safe will protect documents inside for up to four hours in a standard house fire.

Meaning relationships

Synonyms: fire-resistant, flame-retardant, refractory

Antonyms: none provided

2

verb

Meaning 2

To make resistant to damage from fire.

Definition source: English Wiktionary via Wiktextract

Examples

  • I hastily fireproofed my clothing somewhat by pouring a bucket of water over myself before dashing into the flames.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective satellite

Meaning 3

impervious to damage by fire

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

make resistant to fire

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: proof

History

Etymology

Etymology tree Proto-Indo-European *péh2wr̥ Proto-Germanic *fōr Proto-West Germanic *fuir Old English fȳr Middle English fyr English fire English proof English -proof English fireproof From fire + -proof.

Across languages

Translations

40 source translations are retained for this English entry.

  • Bulgarian: огнеупорен (ogneuporen) — resistant to damage from fire
  • Catalan: ignífug — resistant to damage from fire
  • Chinese Mandarin: 耐火的 (nàihuǒ de) — resistant to damage from fire
  • Chinese Mandarin: 防火的 (fánghuǒ de) — resistant to damage from fire
  • Czech: ohnivzdorný — resistant to damage from fire
  • Danish: brandsikker — resistant to damage from fire
  • Esperanto: nebrula — resistant to damage from fire
  • Finnish: tulenkestävä — resistant to damage from fire
  • French: ignifuge — resistant to damage from fire
  • German: feuerfest — resistant to damage from fire
  • Greek: πυρίμαχος m αλεξίπυρος (pyrímachos) — resistant to damage from fire
  • Hungarian: tűzálló — resistant to damage from fire
  • Irish: dódhíonach — resistant to damage from fire
  • Irish: lasairdhíonach — resistant to damage from fire
  • Irish: tinedhíonach — resistant to damage from fire
  • Italian: ignifugo — resistant to damage from fire
  • Japanese: 耐火性の (taikasei no) — resistant to damage from fire
  • Macedonian: огноо́тпорен (ognoótporen) — resistant to damage from fire
  • Malay: kalis api — resistant to damage from fire
  • Māori: ārai ahi — resistant to damage from fire
  • Norwegian Bokmål: brannsikker — resistant to damage from fire
  • Norwegian Bokmål: ildfast — resistant to damage from fire
  • Norwegian Nynorsk: brannsikker — resistant to damage from fire
  • Persian: نسوز — resistant to damage from fire
  • Polish: niepalny — resistant to damage from fire
  • Polish: ognioodporny — resistant to damage from fire
  • Polish: ogniotrwały — resistant to damage from fire
  • Polish: przeciwogniowy — resistant to damage from fire
  • Polish: żaroodporny — resistant to damage from fire
  • Portuguese: à prova de fogo — resistant to damage from fire
  • Romanian: rezistent la daune de la foc — resistant to damage from fire
  • Romanian: ignifug — resistant to damage from fire
  • Russian: огнеупо́рный (ogneupórnyj) — resistant to damage from fire
  • Russian: несгора́емый (nesgorájemyj) — resistant to damage from fire
  • Serbo-Croatian: vatrootporan — resistant to damage from fire
  • Serbo-Croatian: nezapaljiv — resistant to damage from fire
  • Serbo-Croatian: vatrostalan — resistant to damage from fire
  • Spanish: ignífugo — resistant to damage from fire
  • Uyghur: يانماس (yanmas) — resistant to damage from fire
  • Uyghur: ئوت ئالماس — resistant to damage from fire
Real reading context

fireproof in complete knowledge articles