WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / A / act up act up verb 6 letters Scrabble 9 WWF 12 Definitions verb misbehave badly; act in a silly or improper way carry on verb make itself felt as a recurring pain Look “act up” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →