[1] : WordNet (r) 2.0

gremlin
     n : folklore fairies that are somewhat mischievous syn: elf,
          hob, pixie, pixy, brownie, imp
see also:
elf hob pixie pixy brownie imp 

[2] : Moby Thesaurus II by Grady Ward, 1.0

46 moby thesaurus words for "gremlin":
   ariel, befind, corrigan, dingbelle, fifinella, finnbeara, hob,
   hobgoblin, mab, oberon, puck, titania, bad fairy, bad peri,
   banshee, brownie, cluricaune, deviling, devilkin, diablotin, dwarf,
   elf, erlking, fairy, fairy queen, fay, gnome, goblin, hob, imp,
   kobold, leprechaun, little devil, ouphe, peri, pixie, poltergeist,
   pooka, puca, puck, pwca, sprite, sylph, sylphid, tokoloshe,
   young devil

Gremlin >> G Words
Gremlin, definition of term: Gremlin
gremlin_pag1.html