Key and Unknown

Key

Key noun - An explanatory list of the symbols on a map or chart.

Unknown and key are semantically related. In some cases you can use "Unknown" instead a noun "Key".

Nearby Words: keyed, keyboard, keying

Unknown

Unknown noun - An unknown and unexplored region.

Key and unknown are semantically related. Sometimes you can use "Key" instead a noun "Unknown".

Nearby Words: unknowable, unknowing

Mutual synonyms

Both words in one sentence

  • Interface Spoiler: Less than expected - the items you haven't found yet are listed as "unknown" in the key bindings.
  • Video Game / The Castles Of Doctor Creep Chekhov's Boomerang: For some unknown reason, one of the doors in Baskerville requires a key acquired earlier in the castle...and already used to open a completely different door.
  • Mysterious Watcher He and his fellow Observers are a group of men with advanced technology who observe key events in history for unknown reasons, but are bound to not interfere.
Cite this Source
Unknown and Key. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/key/unknown
Key & Unknown. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/key/unknown>.
Unknown or Key. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/key/unknown.
Google Ngram Viewer shows how "key" and "unknown" have occurred on timeline