Collins Dictionary has chosen the term NFT as its word of the year after surging interest in the digital tokens that can sell for millions of dollars brought it into the mainstream. NFT is short for non-fungible token. Collins defines it as "a unique digital certificate, registered in a blockchain, that is used to record ownership of an asset such as an artwork or a collectible". Most people didn't know what an NFT was until this year, when sales boomed, sparked in large part by artist Beeple's March auction of a digital collage NFT for nearly $70 million.

Other highlights include Twitter CEO Jack Dorsey selling an NFT of his first tweet for $2.9 million and electronic musician Grimes selling $6 million worth for her digital art. Experts at Collins, based in Glasgow, Scotland, said Wednesday they chose NFT because of its "meteoric rise in usage", up 11,000% in 2021.