Web 3.0 is also known as:

Web 3.0 is commonly referred to as the Semantic Web because it emphasizes the ability of machines to understand and process information in a way that mimics human reasoning. This concept includes the use of structured data, ontologies, and standards that allow for more intelligent data processing and interconnectivity across different web applications. By using semantic technologies, the web becomes more capable of understanding the context and meaning of the information, thereby improving search efficiency and enabling richer user experiences.

The Semantic Web aims to enhance the way we find, share, and connect information, allowing for more meaningful interactions on the internet. This is in contrast to earlier iterations of the web, where data was primarily formatted for human consumption rather than machine interpretation. While the other terms could apply in certain contexts—like the Decentralized Web focusing on decentralized technologies such as blockchain—the primary and widely accepted term for Web 3.0 is indeed the Semantic Web.