What part of speech is ghost?

"Ghost" can be a few different parts of speech depending on how it's used in a sentence:

* Noun: This is the most common usage. A ghost is a supernatural being. Example: "I saw a ghost in the old house."

* Verb: It can be used to describe a fading or disappearing image or sound. Example: "The image of the ship ghosted in and out of focus."

* Adjective: It can describe something that is faint or shadowy. Example: "The room was lit by a ghostly light."

Let me know if you have a specific sentence in mind, and I can tell you which part of speech "ghost" is acting as!