Padlock n. : A portable lock with a bow which is usually jointed or pivoted at one end so that it can be opened, the other end being fastened by the bolt, -- used for fastening by passing the bow through a staple over a hasp or through the links of a chain, etc.

Padlock n. : Fig.: A curb; a restraint.

Padlock v. t. : To fasten with, or as with, a padlock; to stop; to shut; to confine as by a padlock.

Example:
How to open a combination Padlock when I forgot the combination?

Taxonomy
padlock, lock, shackle, mechanisms, Padlock icon, Combination padlocks, body, Combination locks, heart, design, cast, disk, makers, tumblers, smokehouse, locking mechanism, notches, lock body.

Defination from the web:
... manufacturing this style of padlock. Contemporary with the Scandinavian padlock ("Polhem locks") were the " ... With the advent of inexpensive machining done overseas and the overall poor perception of the security of die cast locks, they no longer dominate today's padlock market. ...