WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / C / cosign cosign verb 6 letters Scrabble 9 WWF 12 Definitions verb sign and endorse (another person's signature), as for a loan co-sign verb sign jointly co-sign Look “cosign” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →