Fiction not based on reality; a class of fiction including but not necessarily limited to fantasy, horror and science fiction.

(idiomatic) Alternative form of by no stretch of the imagination.

plural of imaginal disc

(idiomatic, chiefly of clothing) to cover or hide very little or nothing.

(idiomatic, chiefly in negative constructions) by any means; in any sense; regardless of how one puts or considers it

A product of the imagination.

(archaic) third-person singular simple present indicative form of imagine

(archaic) second-person singular simple present form of imagine