扉
とびら · tobira · JLPT N1 · noun
door
🚪 扉 = 戸 (the door radical) on top, so the character itself says door
The 戸 radical is the old single-leaf door shape. Other door-related words share it, such as 戸口 (doorway) and 戸棚 (cupboard). 扉 is the formal, written word for a door or gate.