also: ばん
裁判官の判が下った。
The judge's decision was handed down.
noun, noun, used as a suffix
Used as a suffix to indicate book or paper sizes, e.g., B5判 (B5 size).
See also: 判型
この本はA5判です。
This book is A5 size.
The kanji 判 originally meant 'to divide' or 'to distinguish', which extended to 'judgment' and later to 'seal' (as a mark of approval). The reading はん is the standard on'yomi.