fireproof metal cabinet
/ˈfaɪərpruːf ˈmetəl ˈkæbɪnət/
noun phrase
-
A strong metal storage cupboard designed to resist heat and flames and protect its contents from fire for a limited period of time.
B1countableformal
- "Important documents are kept in a fireproof metal cabinet."B1
- "The office installed a fireproof metal cabinet for storing contracts and certificates."B2