The term "LTR" has multiple meanings depending on the context in which it is used. Here are some of the most common meanings:

• Long-term relationship: In the context of online dating sites and personal advertisements, LTR stands for "long-term relationship" and is used to express a persons desire for a committed, lasting connection with another individual.

• Letter: LTR can also be an abbreviation for "letter".

• Later: LTR can be used as an abbreviation for "later" in text messages or online.

• Logic trunked radio: In the technology sector, LTR may refer to "logic trunked radio".

• Local twitch response: In the health and fitness field, LTR could mean "local twitch response".

• Lifestyle: In some contexts, LTR can be used to describe a lifestyle based solely around the raging and partying lifestyle.

It is important to note that the most common meaning of LTR is "long-term relationship" in the context of online dating sites and personal advertisements.