LT is an acronym used for various terms such as lieutenant, long-term, low tension, and more. Synonyms for LT depend on the context. For instance, if LT refers to lieutenant, synonyms could be captain, major, or commander. If LT refers to long-term, it could mean never-ending, enduring, or persistent. When LT refers to low tension, it refers to low blood pressure, and synonyms are hypotension or low blood pressure. In the event that LT refers to Light Tank, synonyms could be M5 Stuart, Panzer IV, and M24 Chaffee, among others. In conclusion, synonyms for LT vary according to the context it's used in.