← Back to dual
Full Level C1 →
dual Etymology Atlas
a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural), having more than one decidedly dissimilar aspects or qualities Pro
Word
Root
Affix
Tap any word to open its Atlas. Pinch to zoom, drag to pan.
dual 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.