Hallucination
Hallucination noun - A conception or image created by the imagination and having no objective reality.
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Synonyms for Hallucination
REM sleep and hallucination are semantically related. In some cases you can use "REM sleep" instead a noun "Hallucination".
REM sleep
REM sleep noun - A recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep.
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Synonyms for REM sleep
Hallucination and REM sleep are semantically related. You can use "Hallucination" instead a noun phrase "REM sleep".
Cite this Source
REM sleep and Hallucination. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/hallucination/rem_sleep
Hallucination & REM sleep. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/hallucination/rem_sleep>.
REM sleep or Hallucination. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/hallucination/rem_sleep.
Google Ngram Viewer shows how "hallucination" and "REM sleep" have occurred on timeline