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vertical Etymology Atlas
of or relating to different levels in a hierarchy (as levels of social class or income group), at right angles to the plane of the horizon or a base line Pro
Word
Root
Affix
Tap any word to open its Atlas. Pinch to zoom, drag to pan.
vertical 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.