| noun | restraint that attaches to something or holds something in place |
| noun | the act of fastening things together |
| verb | cause to be firmly attached “fasten the lock onto the door” |
| verb | become fixed or fastened “This dress fastens in the back” |
| verb | attach to “They fastened various nicknames to each other” |
| verb | make tight or tighter “Tighten the wire” |
| fasten | verb | cause to be firmly attached |
| hold fast | verb | stick to firmly |
| attach | verb | cause to be attached |
| fastener | noun | a person who fastens or makes fast |
| fastening | noun | the act of fastening things together |
| fixture | noun | the quality of being fixed in place as by some firm attachment |
| tightening | noun | the act of making something tighter |