The antonym for "un-latches" is "latches." "Un-latches" means to open or release a latch, whereas "latches" means to close or secure a latch. Latches can come in many forms, such as locks, bolts, or hooks, and they are used to fasten doors, windows, or gates. Latches are essential for keeping things safe and secure and keeping unwanted people or animals out. They provide privacy and protection to people and their belongings. Therefore, it is important to know how to operate and maintain different latches to ensure the security of your property.