The term LTR can be summarized by the crossword solutions ENC, which stands for 'ENCOUNTER'. This term is used in a variety of contexts, such as military, business, and social. In the military context, it is used to describe a meeting between two or more forces, usually with the intention of engaging in combat. In business, it is used to refer to a meeting between two or more parties to discuss a potential deal or agreement. In social contexts, it is used to describe a chance meeting between two or more people.