gel² v [I] -lled, -lling 1 if a liquid gels, it becomes thicker and sets 形成胶体,胶化; 凝化 2 if an idea or plan gels, it becomes clearer or more definite 〔想法或计划〕成形,变得更明朗[清楚]: They were going to make a movie together, but the project never gelled. 他们曾打算合作拍一部电影,但这个计划一直没有定下来。 3 if people gel, they begin to work together well as a group 开始合作