Definitions

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

  • transitive v. To attach firmly to something else, as by pinning or nailing.
  • transitive v. To make fast or secure.
  • transitive v. To close, as by fixing firmly in place.
  • transitive v. To fix or direct steadily: fastened her gaze on the stranger.
  • transitive v. To place; attribute: fastened the blame on the weather.
  • transitive v. To impose (oneself) without welcome.
  • intransitive v. To become attached, fixed, or joined.
  • intransitive v. To take firm hold; cling fast: fasten on a notion.
  • intransitive v. To focus steadily; concentrate: All eyes fastened on the speaker.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To attach or connect in a secure manner.

from the GNU version of the Collaborative International Dictionary of English

  • intransitive v. To fix one's self; to take firm hold; to clinch; to cling.
  • transitive v. To fix firmly; to make fast; to secure, as by a knot, lock, bolt, etc.
  • transitive v. To cause to hold together or to something else; to attach or unite firmly; to cause to cleave to something , or to cleave together, by any means
  • transitive v. To cause to take close effect; to make to tell; to lay on.

from The Century Dictionary and Cyclopedia

  • To make fast; cause to adhere; join, connect, or attach firmly; fix or secure in place or position by any physical means: as, to fasten a door with a lock, bolt, or chain; to fasten boards together with nails or screws, or by mortise and tenon; to fasten clothing with buttons, pins, clasps, etc.
  • Figuratively, to attach or unite by any connecting link or agency; connect or join firmly in general: as, to fasten a nickname or a charge upon one; to fasten one's hope on a promise.
  • To make firm or stable; establish; confirm; clench: as, to fasten a bargain.
  • To lay on; cause to reach.
  • = Syn 1 and To bind, attach, tie, link, affix, annex.
  • To become fast or fixed; become attached or firmly joined; close firmly.
  • To take firm hold; cling: generally with on.
  • n. A Middle English form of fast.

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

  • v. become fixed or fastened
  • v. make tight or tighter
  • v. attach to
  • v. cause to be firmly attached

Etymologies

Middle English fastnen, from Old English fæstnian.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old English fæstnian (Wiktionary)

Examples

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