закрепване означава в английски

fix [fixes]▼(an instance of fixing)
noun
[UK: fɪks] [US: ˈfɪks]

fixation [fixations]▼(act of fixing)
noun
[UK: fɪk.ˈseɪʃ.n̩] [US: fɪk.ˈseɪʃ.n̩]

restraint [restraints]▼(something that restrains, ties, fastens or secures)
noun
[UK: rɪ.ˈstreɪnt] [US: rə.ˈstreɪnt]