As well as the discipline of meditation, the hinayana also stresses the importance of postmeditation discipline. Discipline in Sanskrit is shila, and in Tibetan it is tsultrim (tshul-khrims). Tsul means "proper" or "appropriate"; trim means "regulation," "law," or "norm." So tsultrim is practicing "proper conduct" or "proper discipline," according to the example of the Buddha.
During his lifetime, the Buddha established disciplinary rules of conduct that are strictly applied in monastic life. These are called the vinaya in Sanskrit, or dulwa ('dul-ba) in Tibetan. Both vinaya and dulwa literally mean "taming." So in general, vinaya can be understood as any discipline that we practice in order to tame our being.
Thank you again Teo for this topic.