Sobriety refers to being free from intoxication or addiction. When someone's sober, they can think clearly and make good decisions.
You'll often hear people talk about sobriety when discussing drinking habits or recovery from addiction. For instance, "After quitting smoking, he regained his sobriety and started exercising again." This means that because he stopped using cigarettes, he was able to regain control of his life and become more healthy. You might also see a phrase like, "The club's mission is to promote sobriety through group support meetings." Here, the word refers not just to being free from intoxication but to living a lifestyle that rejects addiction altogether.
The quality or state of being sober.
