These expressions enrich language by adding depth and nuance. Here are 15 idioms and phrases using "set," along with their meanings and example sentences:.1. Set the stage Meaning: Prepare the conditions for something to happen.Sentence: The early negotiations set the stage for the successful merger of the two companies.2. Set in stoneMeaning: Fixed or unchangeable.Sentence: The rules are not set in stone and can be revised if needed.3. Set the record straightMeaning: Correct a misunderstanding or false information.Sentence: The politician held a press conference to set the record straight about his comments.4. Set one’s sights onMeaning: Aim or focus on achieving a specific goal.Sentence: She has set her sights on becoming the CEO of the company.5. Set foot inMeaning: Enter a place.Sentence: He has not set foot in his hometown since he left for college.6. Set in motionMeaning: Start a process or series of events.Sentence: The announcement of the election date set in motion a flurry of political activities.7. Set the toneMeaning: Establish a particular mood or character for something.Sentence: The opening remarks set the tone for the entire conference.8. Set on edgeMeaning: Make someone feel nervous or irritated.Sentence: The sound of nails on a chalkboard always sets my teeth on edge.9. Set the barMeaning: Establish a standard or level of quality.Sentence: The team’s victory has set the bar high for future competitions.10. Set someone upMeaning: Trick or frame someone; also, to arrange a meeting or date.Sentence: She claimed her rival set her up to take the blame for the mistake.11. Set the world on fireMeaning: Do something remarkable or revolutionary.Sentence: Her groundbreaking research has truly set the world on fire.12. Set your heart onMeaning: Be determined to achieve or obtain something.Sentence: He has set his heart on buying that vintage car.13. Set the ball rollingMeaning: Start an activity or process.Sentence: Let’s set the ball rolling by discussing the budget for the project.14. Set againstMeaning: Oppose something or someone.Sentence: The villagers were set against the construction of the new factory.15. Set a precedentMeaning: Establish an example that others will follow.Sentence: The court’s ruling in this case will set a precedent for future legal disputes.