Arpanets, also known as ARPANET, was one of the first computer networks developed in the 1960s. This network paved the way for modern-day internet technology as we know it today. Some synonyms for Arpanets include computer network, internet, digital collaboration, cyberspace, and online community. These synonyms represent the vast and global nature of the internet and its ability to connect people and information across different parts of the world. With the advancement of technology and the internet, the use of these synonyms has become increasingly common in everyday language, demonstrating the significant impact and role that Arpanets has played in modern-day society.