A mortice lock is a type of locking mechanism that is embedded or recessed within a door or frame. It is also commonly referred to as a deadlock, or a mortise lock. Some synonyms of mortice lock include, but are not limited to, mortise bolt, mortice cylinder, mortice sash lock, and deadbolt lock. These types of locks are known for their strength and durability, making them a popular choice for securing homes and businesses. They require a key to open and are often found in front doors, internal doors, and commercial properties. With so many options available, it's important to choose the right mortice lock for your specific needs and security requirements.