Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A pin in the form of a clasp, having a sheath to cover and hold the point.
  • n. A pin that prevents the premature or accidental detonation of an explosive device, such as a bomb or grenade.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a pin, in the form of a clasp, that has a guard to cover the sharp point; used to join two pieces of fabric etc together temporarily
  • n. the pin of a hand grenade that prevents accidental detonation

from the GNU version of the Collaborative International Dictionary of English

  • a pin made in the form of a clasp, with a guard covering its point so that it will not prick the wearer.

from The Century Dictionary and Cyclopedia

  • n. A pin bent back on itself, the bend forming a spring, and having the point fitting into a kind of sheath, so that it may not be readily withdrawn or prick the wearer or others while in use.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a pin in the form of a clasp; has a guard so the point of the pin will not stick the user

Etymologies

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Examples

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  • That is the new craziest thing I have ever heard.

    February 2, 2008

  • The origin of the safety pin dates back to the Mycenaeans during the 14th century BC (Late Mycenaean III era). They are known as fibulae (singular fibula) and were used in the same manner as modern day safety pins. In fact, the very first fibulae of the 14th and 13th centuries B.C. looked remarkably like the safety pin. The origin of the fibulae is detailed in Chr. Blinkenberg's 1926 book Fibules grecques et orientales.

    The safety pin was reinvented in July 1849 by American inventor Walter Hunt. The rights to the invention were sold for $400.

    _Wikipedia

    February 1, 2008