Set to Definition 1 of 4Pro Tip 1/3Eager Initiation Shows excitement to begin something, often a group activity or task. They set to work on the project right away. Pro Tip 2/3Team Involvement Used when everyone in a group starts to do something together. The community set to cleaning the park after the festival. Pro Tip 3/3Action Transition Indicates a shift from planning or talking to doing something. After discussing the ideas, they set to implementing them.