This is the 4456th most frequent Japanese word.
大判
"Large size" or "large format."
Used to describe a large size or format of an item, emphasizing its dimensions.
この写真は大判で印刷されています。
This photo is printed in a large format.
Used as part of a compound noun referring to a specific Japanese food item called 'Ōban-yaki', where '大判' connotes a disc-like shape or large appearance.
大判焼きを食べたことがありますか？
Have you ever eaten a 'Ōban-yaki'?
Used to specify the large dimensions of the item being referred to, in this case, paper.