1. An offer to try an alternative course of action, or consider a different way of thinking about or looking at a particular person, place, or thing. 2. For the alcoholic, who has done things his own way without seeking help over many years, considering a suggestion is much more palatable than being told what to do. 3. Men and women in AA may make "suggestions" on how to change your life to make it better. A sponsor might suggest something like this: "You know, I turned left there once and I got hurt. You should think about turning right instead".