1) Abstaining from alcohol 2) Abstinence 3) Teetotaling 1) Sobriety 2) Teetotaling 
Teetotalism refers to either the practice of, or the promotion of, complete personal abstinence from alcoholic beverages. A person who practices (and possibly advocates) teetotalism is called a teetotaler (also spelled teetotaller; plural teetotalers or teetotallers) or is simply said to be teetotal. The teetotalism movement was first started in P...
• (n.) The principle or practice of entire abstinence, esp. from intoxicating drinks.
Tee·to'tal·ism noun The principle or practice of entire abstinence, esp. from intoxicating drinks. 
teetotalism 1. Abstaining from drinking alcoholic beverages. 2. The principle or practice of total abstinence from intoxicating drinks.