The word "what is" is a phrase used most commonly to ask for a definition, explanation, or reason about something. It can be part of idiomatic expressions such as:
- "what is keeping someone" (asking why someone is late)
- "what is (someone) doing with (something)" (asking why someone has something)
- "what is (someone) waiting for?" (saying someone should act immediately)
- "what is the world coming to" (expressing shock or disgust at something)
It generally serves as an inquiry into the nature, identity, or purpose of something and is a foundational phrase in English seeking clarification or explanation. If you had a more specific context in mind for "what is," please let me know! Otherwise, this is the general use of the phrase. Additionally, "What Is Love" is a popular song by Haddaway released in 1993, which is a significant cultural reference for that phrase. Let me know if you want information about that song or something else.