戸
と · to · JLPT N5 · noun
door
🚪 to sounds like the 'to' in 'go to' — a door is what you go to and through
戸 began as a drawing of a single door leaf — one half of 門 (gate), which is two leaves side by side. So 戸 = half a gate = one sliding door panel. It also counts households: one door, one home.