Grammar Monster
Grammar Monster

Meaning of IDK

What Does IDK Mean?

IDK (I Don't Know) is a very common term used in internet chat forums and text speak. It is the basic form of numerous associated terms, including the following:
Summary of Key Points

Definition for IDK

IDK means "I Don't Know". This is the most common definition for IDK on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about IDK:

Definition:I Don't Know
4: Difficult to guess
Typical Users:
Adults and Teenagers
An Image for IDK
When I write IDK, I mean this:

meaning of IDK
"IDK. I just work here."

Examples of IDK in Sentences

Here are some examples of IDK being used in sentences:
  • Person A: Why did you steal her coat?
  • Person B: IDK. I just had the urge.
  • IDK the plan for tomorrow.

An Academic Look at IDK

IDK is an initialism abbreviation. Technically, this means it is pronounced using its individual letters (i.e., Aye Dee Kay). However, as this is harder to say than "I don't know," it is not uttered using its letters. In other words, the abbreviation IDK is for efficiency in writing and not efficiency in speech.

The IDK can be used as a standalone sentence or it can take a direct object. For example:
  • Person A: How much will the hotel cost?
  • Person B: IDK
  • (Here, IDK is a standalone declarative sentence. There is no direct object.)

  • Person A: Why did you steal her coat?
  • Person B: IDK the reason.
  • (Here, the reason is the direct object.)
Of note, the letter D stands for "Don't" in lots of cyber definitions. It almost never stands for "Do" unless the term is a question or is accompanied with not. For example: When D does stand for "Do," it is mostly an imperative verb (i.e., a command). For example:

A Text with IDK

Using IDK on a Cell Phone (SMS Texts, Whatsapp, and Yubl)


Popular Themes on Cyber Definitions