The noun outlet has 4 senses (first 2 from tagged texts)
1. (3) mercantile establishment, retail store, sales outlet, outlet -- (a place of business for retailing goods)
2. (1) wall socket, wall plug, electric outlet, electrical outlet, outlet, electric receptacle -- (receptacle providing a place in a wiring system where current can be taken to run electrical devices)
3. exit, issue, outlet, way out -- (an opening that permits escape or release; "he blocked the way out"; "the canyon had only one issue")
4. release, outlet, vent -- (activity that frees or expresses creative energy or emotion; "she had no other outlet for her feelings"; "he gave vent to his anger")