GAOS meaning in General ?

Answer: What is Great American Outdoor Show mean?

The Great American Outdoor Show (GAOS) is the world's largest outdoor recreation show and expo which is held annually in Harrisburg, Pennsylvania. The show, which was first held in 2014, was previously called the Eastern Sports and Outdoor Show (from 1956 to 2013). The venue of the event was the Pennsylvania Farm Show Complex & Expo Center in Harrisburg. In 2015 the event saw a record attendance of over 250,000 people.

The show draws outdoor and hunting enthusiasts from Pennsylvania, New York, Ohio, West Virginia, Virginia, Maryland, New Jersey, Vermont and Maine as well as hundreds from the Midwest and international guests.

The expo, which was previously called the Eastern Sports and Outdoor Show, occurred annually from 1955 until 2012. In 2013 there was no show, which was reported to be a $80 million loss to the local economy. In 2014 the show saw a re-branding when it returned and looking for a sponsor saw a multimillion-dollar deal with the National Rifle Association.

reference

Full Form	Category
Geneva Amateur Operatic Society	Academic & Science
Great American Office Supplies	General
Great American Outdoor Show	General