v. Function: verb
1 to cause one thing to hold to another FF1C; fasten a feather to a hat FF1E;
Synonyms: affix, attach, fix, rivet
Related Words: connect, join, link, unite; adhere, cleave, cling, cohere, stick
Contrasted Words: divide, divorce, part, separate, sever, sunder; loose, loosen
Antonyms: unfasten
2 to fix in place or in a desired position FF1C; fasten the door FF1E;
Synonyms: anchor, catch, fix, moor, secure
Related Words: bed, implant, infix, lodge, set, settle; embed, join, wedge; establish; bar, hitch, hook
Idioms: make fast ( or secure or sure)
Contrasted Words: loose, undo, unloose, unloosen
Antonyms: unfasten
3 to direct (as attention or hope) directly and steadily FF1C; fastened his whole mind on the problem FF1E;
Synonyms: concenter, concentrate, fix, fixate, focus, put, rivet
Related Words: address, apply, devote, direct, train, turn
Contrasted Words: falter, vacillate, waver