to give a detailed explanation of something:
- account (to someone) for something phrasal verb
- accountability
- adumbration
- annotation
- annotator
- argue
- demythologize
- excuse
- give someone to understand (that) phrase
- go over phrasal verb
- have explaining to do
- histography
- indefinably
- sketch
- spell
- undefined
- undescribable
- viz.
- walk
- walk through something phrasal verb