Think-in refers to a gathering or meeting focusing on generating new ideas or discussing certain issues. There are several synonyms for the word "think-in," such as brainstorming, ideating, collaborating, strategizing, and brainstorming session. Brainstorming involves a group of individuals coming together to collectively generate new and creative ideas. Ideating involves bringing together various approaches and perspectives to develop new solutions. Collaborating involves working with a group of people to come up with a successful outcome. Strategizing involves planning and developing a long-term strategy to achieve specific goals. Brainstorming session involves a meeting of people to discuss and explore new ideas to solve a problem or fulfill a purpose.