latter part; second part; subsequent section
Refers to the later portion of a text, speech, process, or event. Often used in contrast with 前段 (ぜんだん, 'first part').
In the latter part of the report, concrete proposals are presented.
Based on the explanation in the first part, we will discuss solutions in the second part.
Compound of 後 (こう, 'after, later') and 段 (だん, 'step, stage, section'). The reading こうだん follows standard on'yomi.