Shackle

noun
1.
a ring or other fastening, as of iron, for securing the wrist, ankle, etc.; fetter.
2.
a hobble or fetter for a horse or other animal.
3.
the U -shaped bar of a padlock, one end of which is pivoted or sliding, the other end of which can be released, as for passing through a staple, and then fastened, as for securing a hasp.
4.
any of various fastening or coupling devices.
5.
Often, shackles. anything that serves to prevent freedom of procedure, thought, etc.
verb (used with object), shackled, shackling.
6.
to put a shackle or shackles on; confine or restrain by a shackle or shackles.
7.
to fasten or couple with a shackle.
8.
to restrain in action, thought, etc., as by restrictions; restrict the freedom of.
noun
1.
(often pl) a metal ring or fastening, usually part of a pair used to secure a person’s wrists or ankles; fetter
2.
(often pl) anything that confines or restricts freedom
3.
a rope, tether, or hobble for an animal
4.
a U-shaped bracket, the open end of which is closed by a bolt (shackle pin), used for securing ropes, chains, etc
verb (transitive)
5.
to confine with or as if with shackles
6.
to fasten or connect with a shackle