I. noun
1.
Synonyms: revelation , apocalypse, oracle, prophecy
Related Word: apparition, phenomenon, presence
2.
Synonyms: fancy 4, daydream, dream, fantasy ( or phantasy), nightmare, phantasm
Related Word: muse
Idioms: phantom of the mind
3.
Synonyms: eye 2, eyesight, seeing, sight
II. verb
Synonyms: think 1, conceive, envisage, envision, fancy, feature, image, imagine, realize, visualize