What is

• The word “what” is a pronoun and determiner used to ask for information about something, to identify something, or to inquire about nature, scope, or meaning. It can function in questions like “What is your name?” or “What is the capital of France?”

• In philosophy and science, “what” is used to probe the nature or essence of objects, properties, or concepts, and it often leads to investigations about definitions, classifications, or underlying causes

• In everyday usage, “what” can introduce questions about preferences, choices, or descriptions, as in “What would you like to eat?” or “What happened here?”

If you meant something different by your query, please share a bit more context so the response can be tailored precisely.