What does tusd mean?

Could you please explain to me what "tusd" stands for in the context of cryptocurrency and finance? I'm quite interested in understanding its significance and how it fits into the larger picture of digital currencies and financial transactions. I've heard it mentioned a few times, but I'm still not entirely clear on its meaning and purpose. Could you elaborate on its functionality, potential uses, and any relevant details that would help me grasp its essence? Thank you for your assistance in clarifying this matter for me.