The word “cinch” has a couple of primary meanings in English:
1. **Noun:** It refers to something that is very easy to do or accomplish; a task or situation that is straightforward and requires little effort. For example, “The exam was a cinch for her.”
2. **Verb:** It can also mean to fasten or secure something tightly, especially related to saddles or belts. For example, “He cinched the saddle firmly before riding.”
In informal usage, “cinch” often conveys a sense of assurance that something will definitely happen or is guaranteed to succeed.