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cog

see definition of cog
  • nounmain part of device
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Synonyms for cog

noun main part of device
  • prong
  • cogwheel
  • differential
  • fang
  • gear
  • pinion
  • rack
  • ratchet
  • tine
  • tooth
  • transmission
  • tusk
  • wheel

tooth

noun. a toothlike or tooth-shaped object
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.