Meaning & use
hallucinating
Perceiving things that are not actually present, often as a result of illness, drugs, exhaustion, or a mental health condition.
See it in a sentence
The feverish patient kept hallucinating and talking to people who weren't in the room.
Sleep deprivation can leave pilots hallucinating during long overnight flights.
A note on using this word
In technology contexts, "hallucinating" now also describes an AI system confidently generating false or made-up information.
Words with a similar meaning
seeing thingsimagining
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