A (usually) metal fastener consisting of a cylindrical body that is threaded, with a larger head on one end. It can be inserted into an unthreaded hole up to the head, with a nut then threaded on the other end; a heavy machine screw.
From Middle English bolt, from Old English bolt, from Proto-Germanic *bultaz, perhaps from Proto-Indo-European *bʰeld- ("to knock, strike"). Compare Lithuanian beldu ("I knock"), baldas. Akin to Dutch and West Frisian bout, German Bolz or Bolzen, Danish bolt, Swedish bult, Icelandic bolti.
From Middle English bulten, from Anglo-Norman buleter, Old French bulter (modern French bluter), from a Germanic source originally meaning "bag, pouch" cognate with Middle High German biuteln ("to sift"), from Proto-Germanic *buzdô ("beetle, grub, swelling"), from Proto-Indo-European *bʰūs- ("to move quickly"). Cognate with Dutch buidel.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Level up your vocabulary by setting personal goals.