A detachable lock with a U-shaped bar hinged at one end, designed to be passed through the staple of a hasp or a link in a chain and then snapped shut.(noun)
To lock up with or as if with a padlock.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "padlock" in a sentence
"To open the padlock, you must press the buttons. key number 1 to represent the letter 'a', the key number 2 to represent the letter 'f', and so on. code to open the padlock is 'padlock'."
"He takes a paper clip out of his pocket and opens it out, and I think maybe he has a penknife, too, and next thing I know the padlock is open."
""Azactly," said Old Gillman; and slipped the padlock from the staple and put it in his pocket."