A dream is also a long-term hope, e.g. in I have a dream. It often has a positive connotation and is associated with achievement.
The term "dreamer" is used to ridicule someone who has hopes for something unlikely, or mistakenly believes something. This usage is especially associated with the term "pipe dream", which literally refers to a fantasy induced by opium.
Dream (pop group) was a pop group consisting of four girls that hit the music scene in 2000 with their single "He Loves U Not".
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