What is an amulet? Can amulets protect against ghosts?
Some ghost hunters wear jewelry called "amulets" because they believe amulet jewelry provides protection, of some sort, from ghosts. Available online, often, amulets are claimed to be enchanted and charmed with powerful spells - purportedly making the it an effective weapon against harmful spirits: ghosts.
An example of a common amulet might be a crucifix - a cross typically worn by some Christians. We would suggest that such jewelry is only powerful to the mind that believes in it. With ghost hunting, a strong mind is highly recommended so as to not succumb to fear.
An amulet is the same as a charm or talisman jewelry worn by some.
Definition of an Amulet:
1. A magical figure cut or engraved under certain superstitious observances, to which magical effects are ascribed: the seal, figure, character, or image, engraved on wood, stone, or on a metal corresponding to the image in order to receive its influence.
2. Something that produces extraordinary effects, especially in averting or repelling evil; an amulet; a charm; as, a talisman to avert diseases.