Merriam-Webster adds 1,400 new words in 2026: Vibe coding, meme coin, parasocial, AGI, Sunday scaries, trash panda and Mandela Effect explained

Merriam-Webster has added 1,400 new words and definitions to its online dictionary. These additions include internet slang, AI terminology, and modern lifestyle expressions. Terms like 'vibe coding', 'AGI', and 'parasocial' now feature in the recognized lexicon. Food trends and everyday life expressions also received new entries. This update reflects language's evolution across technology and popular culture.