Many a grocery store

• Supermarket chain that's "Hometown Proud"
• Franchised supermarket brand
• Whole Foods Market competitor
• Big Chicago-based franchiser
• Grocery chain inits
• Market initials in a red oval
• Grocery chain letters
• One of the most common of the five major classes of immunoglobulins
• Former Honshu province

Wikipedia Word definitions in Wikipedia
IGA is a U.S. brand of grocery stores that operates in more than 30 countries. Unlike the chain store business model, IGA operates as a franchise through stores that are owned separately from the brand. Many of these stores operate in small town markets ...