fastenˈfæs ən, ˈfɑ sən
fasten, fix, secure (verb)
cause to be firmly attached
"fasten the lock onto the door"; "she fixed her gaze on the man"
become fixed or fastened
"This dress fastens in the back"
"They fastened various nicknames to each other"
tighten, fasten (verb)
make tight or tighter
"Tighten the wire"
To attach or connect in a secure manner.