Apparition

1. n. The first appearance of a star or other luminary after having been invisible or obscured; — opposed to occultation.
2. n. The act of becoming visible; appearance; visibility.
3. n. The thing appearing; a visible object; a form.
4. n. An unexpected, wonderful, or preternatural appearance; a ghost; a specter; a phantom.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.