Amulet

(n.) An ornament, gem, or scroll, or a package containing a relic, etc., worn as a charm or preservative against evils or mischief, such as diseases and witchcraft, and generally inscribed with mystic forms or characters. [Also used figuratively.]

Thesaurus Entries

charm, fetish, fylfot, gammadion, good-luck charm, hoodoo, juju, love charm, luck, lucky bean, lucky piece, madstone, mascot, mumbo jumbo, obeah, periapt, philter, phylactery, scarab, scarabaeus, scarabee, sudarium, swastika, talisman, veronica, voodoo, whammy