← Back to hierarchy
Full Level C1 →
hierarchy Etymology Atlas
a series of ordered groupings of people or things within a system, A body of authoritative officials organized in nested ranks. Pro
Word
Root
Affix
Tap any word to open its Atlas. Pinch to zoom, drag to pan.
hierarchy is a Level C1 word — Pro only
Pro unlocks the Etymology Atlas for levels A2–C2 — plus FSRS-5 spaced repetition, mastery tracking, and the activity dashboard.