What tone and formality is LMK?

"LMK" has a casual & conversational tone and is considered informal in digital communication.

Reference ID: lmk

Verified Reference Updated: Jan 15, 2025

LMK

Let Me Know

Pronunciation: /lmk/

Primary Meaning

LMK stands for "Let Me Know".

"LMK" stands for "Let Me Know". Commonly used in texting contexts and digital communication.

Primary Category Texting

Tone & Register Casual & conversational

Formality Level Informal

First Observed c. 2000s (SMS & Chat Era)

Real-World Chat Example

Taylor

Are we still meeting up for coffee LMK?

You

Yes absolutely! 3 PM at the corner cafe works great for me.

How it works here: Here, "LMK" is written shorthand for "Let Me Know" when coordinating calendar plans.

Use "LMK" to save time when arranging meetups, schedules, or discussing current timing.

Common Communication Contexts:

Text messages Direct messages (DMs) Group chats

Alternative spellings: lmk, LMK