A padlock is a type of lock that is used to SECURE items such as doors, gates, and other objects. The two crossword solutions for the term padlock are 'SECURE' (6 letters) and 'SHUT' (4 letters). SECURE is often used to describe the action of locking something with a padlock, while SHUT is often used to describe the action of closing something with a padlock. Both words can be used to describe the same action of using a padlock to SECURE an item.