LMK

LMK is an initialism that is most commonly used to mean "Let me know." It appears frequently in informal digital communication, including text messages, emails, and social media, where it serves to request a reply or an update. For example, someone might say, "LMK what time works for you," to ask for preferred scheduling.

Beyond this everyday usage, LMK can function as an acronym or branding element for organizations, brands, or projects that choose the letters L, M, and K as their initials. In such cases, the exact meaning of LMK is context-dependent and not standardized. As with many three-letter acronyms, the term can refer to different entities in different domains, and it should be interpreted from the surrounding information.

Because of its brevity, LMK can be ambiguous when encountered in written communication, especially across different languages or communities where different phrases could fit the same initials. When precision is important, spelling out "Let me know" or providing additional context helps prevent misinterpretation. In contemporary communication, LMK remains primarily a convenient shorthand for prompting a response, while also serving as a potential name or label in other contexts.