Abstinence refers to the practice of refraining from or abstaining from certain behaviors, activities, or consumption. In a general sense, it means holding back or restraining oneself from indulging in something that is perceived as being harmful or undesirable.
In terms of sexual behavior, abstinence refers to the practice of refraining from any form of sexual activity, including vaginal, anal and oral sex. This can be a personal choice, based on religious beliefs, moral values, health concerns or other reasons.
Abstinence is also used in reference to dietary habits where an individual may choose not to consume certain food items for various reasons such as medical conditions, cultural practices or personal preferences.