Is LMK safe for kids?

Slang Decoder rates LMK as Safe, meaning it is everyday slang that is not rude or explicit.

Which generation uses LMK?

LMK is used by both Gen Z and Gen Alpha.

Where can I find the meaning of LMK?

The meaning of LMK, with a real example and a parent note, is in the Slang Decoder app for iPhone. Slang Decoder is free to download, with an optional Premium subscription that unlocks the full library.

Gen Z & Gen Alpha slang

What does LMK mean?

Generation: Gen Z & Gen Alpha
Category: Texting
Parent safety rating: Safe

Meaning and example

See what “LMK” means in Slang Decoder

The meaning, a real example sentence, and a parent note for LMK are in the Slang Decoder app for iPhone. Free to download, with an optional Premium subscription.

Questions parents ask about LMK

Is LMK safe for kids?: Slang Decoder rates LMK as Safe, meaning it is everyday slang that is not rude or explicit.
Which generation uses LMK?: LMK is used by both Gen Z and Gen Alpha.
Where can I find the meaning of LMK?: The meaning of LMK, with a real example and a parent note, is in the Slang Decoder app for iPhone. Slang Decoder is free to download, with an optional Premium subscription that unlocks the full library.

LowkenuinelyGeneration: Gen Z & Gen AlphaSafety rating: Safe
LMIRLGeneration: Gen Z & Gen AlphaSafety rating: Parent alert
LowkeyGeneration: Gen Z & Gen AlphaSafety rating: Safe
LMAOGeneration: Gen Z & Gen AlphaSafety rating: Edgy
MootsGeneration: Gen ZSafety rating: Safe
LMADGeneration: Gen AlphaSafety rating: Safe
MOSGeneration: Gen Z & Gen AlphaSafety rating: Edgy
LitGeneration: Gen ZSafety rating: Safe

Browse all Texting slang or the full slang index.

Last updated October 18, 2026

Meaning and example

Questions parents ask about LMK

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