The Meaning of LMK: What It Is and How To Use It

Do you know the definition of LMK? This article will provide you with all of the information you need on the abbreviation LMK, including its definition, usage, examples, and more!

Your writing, at its best

Compose bold, clear, mistake-free, writing with Grammarly's AI-powered writing assistant

What does the acronym LMK mean?

According to Abbreviations, LMK is internet slang for let me know. This is commonly used by texters in a text message, and people on social media use LMK as well on sites like Facebook, Twitter, Snapchat and Instagram. LMK is used to ask for feedback, often about future plans. This is not asking for an answer in real-time, but requesting the appropriate information at some point. This popular phrase is used in many text conversations about a future event or a person’s wants. The opposite of LMK is LYK, which means let you know. This first example shows one way you could use LMK:

Are you taking the kids to the shore in July? LMK, because we are thinking about it! It could be fun to go in on a place together. 

In this second example, LMK is also used to schedule something:

LMK if you’re going to get ur nails done this week – they’re having a 2 for 1 special! In my personal opinion that place is a rip off so would love to save some $$$ lol

This final example shows another way someone could use LMK:

LMK if u still want to hang out later… I promise I wasn’t lying earlier. 

LMK is also the name of a song by American singer and songwriter Kelela. This song was released by Warp Records on August 1, 2017 as the lead single of Tale Me Apart, Kelela’s debut studio album. 

According to The Free Dictionary, LMK can stand for much more than just let me know. This acronym has other potential definitions, but these are less commonly used. If you do decide to use one of these alternate meanings, make sure that you provide the person you are talking to with the pepper context and information so that they are not confused. 

  •  Local Maintenance Key
  •  Lativi Media Karya (Malaysia; broadcasting company)
  •  GPS Landmark
  •  Landsforeningen Mot Kreft (Norwegian: National Association against Cancer)
  •  Lag My Klaar (Afrikaans: Laughing Out Loud)
  •  Local Master Key

What are other text slang acronyms?

LMK is one of many chat acronyms you may see. The best resource for finding acronyms of this category is Zip Whip, which has provided the below list of common knowledge acronyms and abbreviations you might see in text conversations or on social media, or in some face to face conversations. When in doubt, use the equivalent full form of the popular phrase you are intending despite the acronym’s convenience. 

  •  WFH: Work from home
  •  G2G: Got to go
  •  MFW: My face when
  •  AMA: Ask me anything
  •  RN: Right now
  •  TFW: That feeling when
  •  SFLR: Sorry for late reply
  •  AMAA: Ask me almost anything
  •  NP: No problem
  •  AFAIK: As far as I know
  •  Finna: going to, intending to
  •  TIL: Today I learned
  •  TBF: To be frank
  •  SO: Significant other
  •  BFF: Best friends forever
  •  FYI: For your information
  •  ATM: At the moment
  •  TBH: To be honest
  •  TBA: To be announced
  •  BDAY: Birthday
  •  NTH: Nice to have
  •  THX: Thanks
  •  GR8: Great
  •  SMH: Shaking my head
  •  F2F: Face to face
  •  OTOH: On the other hand
  •  IKR: I know, right
  •  TBC: To be continued
  •  Yeet: To throw something or used as an exclamation
  •  SNMP: So not my problem
  •  Bestie: a best friend or term of endearment
  •  TBD: To be determined or to be decided
  •  MSG: Message
  •  MRW: My reaction when
  •  SRSLY: Seriously
  •  FTW: For the win
  •  POV: Point of view
  •  OML: Oh my lord
  •  CYA: See ya
  •  BTW: By the way
  •  JSYK: Just so you know
  •  DM: Direct message
  •  FOMO: Fear of missing out
  •  CYT: See you tomorrow
  •  OOO: Out of office
  •  IMHO: In my humble/honest opinion
  •  TL;DR: Too long, don’t/didn’t read
  •  ROFL: Rolling on floor laughing
  •  OMW: On my way
  •  YP: Yes please
  •  PPL: People
  •  DIY: Do it yourself
  •  EOD: End of day
  •  Tea: Gossip, drama
  •  YGTI: You get the idea
  •  IG: Instagram
  •  DIKY: Do I know you?
  •  IDK: I don’t know
  •  YOLO: You only live once
  •  LOL: Laughing out loud
  •  DAE: Does any else
  •  TY: Thank you
  •  JIC: Just in case
  •  BC or B/C: Because
  •  NBD: No big deal
  •  OMG: Oh my god/gosh
  •  COB: Close of business
  •  IIRC: If I recall correctly
  •  HMU: Hit me up
  •  Sus: Suspicious
  •  QAP: Quick as possible
  •  TGIF: Thank goodness/god it’s Friday
  •  TMI: Too much information
  •  NVM: Never mind
  •  HIFW: How I feel when
  •  ICYMI: In case you missed it
  •  IMO: In my opinion
  •  OOTD: Outfit of the day
  •  IDC: I don’t care
  •  TTYL: Talk to you later
  •  TYT: Take your time
  •  HBU: How about you?
  •  IFYP: I feel your pain
  •  ILY: I love you
  •  WDYM: What do you mean?
  •  W/O: Without
  •  QOTD: Quote of the day
  •  IRL: In real life
  •  YMMV: Your mileage may vary
  •  FWIW: For what it’s worth
  •  ISTG: I swear to god
  •  PNL: Peace & love
  •  JK: Just kidding
  •  TTP: To the point
  •  TIA: Thanks in advance
  •  B4N: Bye for now
  •  AKA: Also known as
  •  FTFY: Fixed that for you
  •  NGL: Not gonna lie
  •  KMN: Kill me know
  •  LMK: Let me know
  •  IYKYK: If you know you know
  •  V: Very
  •  BBL: Be back later
  •  OFC: Of course
  •  WYWH: Wish you were here
  •  Bae: Before anyone else
  •  HTH: Hope this helps
  •  ASAP: As soon as possible
  •  BRB: Be right back

What are synonyms of LMK?

Power Thesaurus has many synonyms for let me know! These equivalent terms can be used interchangeably.

  •  page me
  •  let me hear
  •  enlighten me
  •  give me notice of
  •  keep me in the loop
  •  be telling me
  •  send a message
  •  keep me apprised
  •  keep me in the know
  •  alert me
  •  beep me
  •  apprise me
  •  explain to me
  •  telephone me
  •  write to me
  •  teach me
  •  announce myself
  •  give a jingle
  •  keep me informed
  •  call it
  •  advise me
  •  call me
  •  send me a note
  •  alerting me
  •  inform me
  •  notify me
  •  better tell me
  •  telling me
  •  alerted me
  •  send me a message
  •  get back to me when you can
  •  warn me
  •  give me a call
  •  keep me posted
  •  message me
  •  told me
  •  fill me in when you get a chance
  •  keep me updated
  •  give me a shout
  •  tell me

Overall, the acronym LMK means let me know. This is a commonly used internet slang term.


  1. LMK – What does LMK stand for? The Free Dictionary
  2. LMK – Let Me Know | Abbreviations   
  3. 110 Texting Acronyms, Abbreviations and Slang to Know | Zip Whip 
  4. Let Me Know synonyms – 148 Words and Phrases for Let Me Know | Power Thesaurus