← Back to duo
Full Level C1 →
duo Etymology Atlas
A meal with two paired components., A song in two parts; a duet. Pro
Word
Root
Affix
Tap any word to open its Atlas. Pinch to zoom, drag to pan.
duo 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.