Wiktionary
family-size
n. (attributive of family size English)
Usage examples of "family-size".
A red-faced account representative converted five thousand dollars to lire and rented me a family-sized safe deposit box, where I stashed the satchel.
Red-orange streaked with black and light brown and cream, it looks like a family-size pepperoni, black olive, and anchovy pizza, the sort that might be delivered to a family living at the top of a beanstalk.