v. fas·tened, fas·ten·ing, fas·tens
1. To attach firmly to something else, as by pinning or nailing.
a. To make fast or secure: fastened the children into their car seats.
b. To close or connect securely, as with a lock or other device: was unable to fasten the bulging suitcase.
3. To fix or direct steadily: fastened her gaze on the stranger.
4. To place; attribute: fastened the blame on the weather.
5. To impose (oneself) without welcome.
a. To become attached, fixed, or joined: barnacles that had fastened to the ship's bottom.
b. To close or join in a particular manner: tent flaps that fasten with a zipper; a shirt that fastens down the front.
a. To focus one's sight or attention on something: fasten on a notion.
b. To select something by close attention: "By April he had fastened on the site where he would erect his grand city" (Charles Officer).
[Middle English fastnen, from Old English fæstnian; see past- in the Appendix of Indo-European roots.]
Synonyms: fasten, anchor, fix, moor1, secure
These verbs mean to cause to remain firmly in position or place: fastened the cabinet to the wall with screws; anchored the pull-up bar to the door frame; fixed the flagpole in concrete; will moor the rowboat at the dock; secured the door with a heavy bolt.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.
American Heritage Dictionary Products
The American Heritage Dictionary, 5th Edition
The American Heritage Dictionary of Idioms
The American Heritage Roget's Thesaurus
Curious George's Dictionary
The American Heritage Children's Dictionary
The American Heritage Dictionary of Indo-European Roots
The American Heritage Student Grammar Dictionary
The American Heritage Desk Dictionary + Thesaurus
The American Heritage Science Dictionary
The American Heritage Dictionary of Business Terms
The American Heritage Student Dictionary
The American Heritage Essential Student Thesaurus