73

The slang term “73” is used in internet and texting culture to mean “best regards” or “goodbye.” It is often used to end a conversation in a friendly and polite manner.

In a more detailed sense, “73” originated from the language used by amateur radio operators to communicate with each other. They developed a standardized set of codes and abbreviations to make communication faster and more efficient. “73” was adopted as a way to express good wishes or farewell, and it eventually made its way into internet slang.

Example 1: Thanks for helping me with my homework. I really appreciate it! 73.
Example 2: It was great chatting with you. Have a fantastic day! 73.