noun

1. The image-making power of the mind; the act of mentally creating or reproducing an object not previously perceived; the ability to create such images.

   “Imagination is one of the most advanced human faculties.”

2. Particularly, construction of false images; fantasizing.

   “You think someone's been following you? That's just your imagination.”

3. Creativity; resourcefulness.

   “His imagination makes him a valuable team member.”

Synonyms: creativity, fancy, imaginativeness, invention, inventiveness, conception, imagining, notion