Lock
… be locked: you will be put pitfalls.
Explanation & Definition:
Short explanation
A mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form.
Complete definition
A lock is a mechanical or electronic fastening device that is released by a physical object (such as a key, keycard, fingerprint, RFID card, or security token) or secret information (such as a keycode or password), or combination of more than one of these. …