noun / verb / adjective
dream
DREEM/driːm/
An imagined sequence of experiences in the mind.
In my dream, I float above the city without wings.

Etymology
The sleeping-vision word is probably related to Scandinavian words for dreams. Its relationship to Old English dream, meaning “joy, mirth, music,” remains unproved, so a change from merriment to sleeping images cannot be assumed.
In context
when they say I had this strange dream what they're referring to is dreaming that takes place during the stage of sleep called rapid eye movement sleep or REM sleep
More examples
- I dreamed about missing the bus and woke up worried.
- He dreams of opening a bakery of his own.
- They finally find their dream home near the lake.
Forms
dream · dreams · dreamed · dreaming
dreamlike adjective — Resembling the strange experiences of dreams.