master key

Fetched 2026-10-26 (cache).

Synonyms: water key, master keys

Antonyms: water key, master keys

Related words from Datamuse; suggestions, not definitions.

Noun

1. A key designed to open a [[set]] of several [[lock]]s; a [[passkey]].
2. {{lb|en|figurative}} Any tool or technique that can solve many types of difficulty.
3. {{lb|en|police|slang}} A [[shotgun]] [[shell]] designed for [[breach]]ing [[door]]s.

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