- To fix firmly; to make fast; to secure, as by a knot, lock, bolt, etc.; as, to fasten a chain to the feet; to fasten a door or window.
- 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; as, to fasten boards together with nails or cords; to fasten anything in our thoughts. "The words Whig and Tory have been pressed to the service of many successions of parties, with very different ideas fastened to them." [Swift.]
- To cause to take close effect; to make to tell; to lay on; as, to fasten a blow.(Obs)"If I can fasten but one cup upon him." [Shak.]synonyms: To fix; cement; stick; link; affix; annex.
Etymology: AS. fæstnian; akin to OHG. festinōn. See Fast (a.)