Definition of GREMLIN

an imaginary being usually having a small human form and magical powers <during the World Wars, fighter pilots adopted the fanciful notion that gremlins were responsible for mechanical failures on their planes>
Synonyms brownie, dwarf, elf, faerie (also faery), fay, gnome, goblin, gremlin, hobgoblin, kobold, leprechaun, pixie (also pixy), puck, sprite, troll

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