Poltergeist, from the German meaning Noisy Ghost, is always attributed to be very noisy and to be able to move objects sometimes very heavy across a room with apparent ease. A ghost is more commonly a spirit of someone who having departed this world, generally doesn't wish to cause disruption in a way such as a poltergeist does.
A ghost or spirit is a person who has died, and has reverted into their energy form... or it could be a person who never lived in that same form... A poltergeist is someone who while in that form throws your stuff around, and makes a general nuisance of themselves.
A ghost is an imprint of a departed soul whereas a poltergeist is a spiritual being that causes problems such as throwing objects and making noise
a poltergeist
yep. "poltergeist" means "noisy ghost" so a poltergeist is a ghost.
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Since there is no such thing as a poltergeist (Knocking ghost), then no, it/they cannot change a person's appearance.
Call the ghost busters. They'll know what to do. Actually, just make friends with a bigger ghost and then tell them to scare the crap out of your ghost poltergeist.
The name for a ghost that pulls pranks on people is a poltergeist.
American Haunting, The Shining, Poltergeist. So scary.