Meaning of rigorously

1. The scientists rigorously tested their hypothesis through multiple experiments.
2. She approached her studies rigorously, spending hours each day in the library.
3. The company rigorously enforced its safety protocols to prevent accidents in the workplace.
4. The athletes trained rigorously in preparation for the upcoming competition.
5. The teacher graded the students' essays rigorously, looking for grammar and spelling errors.
6. The chef followed the recipe rigorously to ensure the dish turned out perfectly.
7. The police department rigorously investigated the crime, leaving no stone unturned.
8. The students were required to adhere to a rigorously enforced dress code at the school.
9. The author rigorously researched the historical background of the novel to ensure accuracy.
10. The doctor advised the patient to follow a rigorously controlled diet to manage their condition.