Observer
Observer noun - Someone who sees or watches something.
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Synonyms for Observer
Sleeper and observer are semantically related. In some cases you can use "Sleeper" instead a noun "Observer".
Mutual synonyms
Both words in one sentence
- The Sleeper in the Pyramid on the Dead Plateau in The Fuller Memorandum, a nameless thing kept docile through a wall of crucified, undead victims maintaining a quantum observer effect.
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The Sleeper in the Pyramid on the Dead Plateau is a more straightforward example; it's an unspecified Eldritch Abomination that's being held inside a pyramid on a distant planet by observer effect magic.
Source: Literature / The Laundry Series -
Ungern-Sternberg, for instance, constructed something called the "Wall of Pain" from the undead, crucified bodies of war prisoners in order to create a quantum-observer effect that would prevent the Sleeper in the Pyramid on the Dead Plateau from rising.
Source: Powered by a Forsaken Child
Cite this Source
Sleeper and Observer. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/observer/sleeper
Observer & Sleeper. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/observer/sleeper>.
Sleeper or Observer. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/observer/sleeper.
Google Ngram Viewer shows how "observer" and "sleeper" have occurred on timeline