firewall

Fetched 2026-10-26 (cache).

Synonyms: fireball, firecall, firefall, fire wall, firehall, firewalk, farewell, firesale, firewalls, fireward, firebell

Antonyms: fireball, firecall, firefall, fire wall, firehall, firewalk, farewell, firesale, firewalls, fireward, firebell

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{senseid|en|architecture}} {{lb|en|architecture}} A [[fireproof]] [[barrier]] used to [[prevent]] the [[spread]] of [[fire]] between or through [[buildings]], structures, electrical [[substation]] transformers, or within an aircraft or vehicle.
2. {{senseid|en|computer security}} {{lb|en|computer security}} The [[software]] that [[monitor]]s [[traffic]] in and out of a [[private]] [[network]] or a [[personal computer]] and [[allow]]s or [[block]]s such traffic depending on its [[perceive]]d [[threat]].
3. {{senseid|en|physics}} {{lb|en|physics}} A hypothetical phenomenon where an observer falling into a [[black hole]] encounters high-energy [[quantum|quanta]] at or near the [[event horizon]].
4. {{senseid|en|organization}} An [[ethical wall]]; an [[organizational]] or [[legal]] separation between two [[entities]] that might otherwise cause [[conflict of interest|conflicts of interest]].
5. {{senseid|en|politics}} {{lb|en|politics|especially|[[Germany#Proper noun|Germany]]}} An unwritten agreement among major [[political party#Noun|political parties]] to refuse to govern or cooperate with [[national conservative]] and [[ultranationalist#Adjective|ultranationalist]] parties.

Verb

1. {{lb|en|transitive|computer security}} To [[protect]] with a [[#Noun|firewall]].
2. {{lb|en|transitive|computer security}} To [[block]] with a [[#Noun|firewall]].
3. {{lb|en|intransitive|motor vehicles or aircraft|slang}} To use [[maximum]] [[engine]] [[power]] or [[acceleration]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.