Please provide more context! "That" is a demonstrative pronoun that refers to a specific object, concept, or situation. To understand what "that" refers to, I need to know what you're talking about.

For example, you could be referring to:

• An object: "What is that on the table?"
• An idea: "I don't understand that concept."
• A situation: "That was a great movie!"

Tell me more, and I'll do my best to help!