Wi-Fi is a technology that allows for wireless internet access. The term is an abbreviation of 'Wireless Fidelity' and is often used interchangeably with the term 'wireless network'. The three crossword solutions for the term Wi-Fi are SEMPER, SPY, and SCI. SEMPER stands for 'Securely Encrypted Mobile Phone Enhanced Radio', which is a type of Wi-Fi security protocol. SPY stands for 'Secure Protocol for Wireless Internet', which is another type of Wi-Fi security protocol. Finally, SCI stands for 'Secure Communications Interface', which is a type of Wi-Fi encryption protocol.