noun
floor
B1
Boden (der) means 'floor' or 'ground' — the surface inside a room or the earth/ground outdoors. Plural: Böden (note umlaut). Genitive: des Bodens. Common prepositions: auf dem Boden (on the floor), am Boden (on the ground). Regular declension except plural umlaut change.
Examples
Die Vase ist auf den Boden gefallen und zerbrochen.
The vase fell to the floor and broke.
Der Boden im Wohnzimmer ist neu verlegt.
The living-room floor has just been installed.
Die Arbeiter säuberten den Boden, bevor die Gäste den Raum betraten.
The workers cleaned the floor before the guests entered the room.
Details
Mnemonics
Imagine the ground under your feet — the 'Boden' is the floor or ground.
Der Boden — think 'der Boden' as the solid 'der' earth (masculine).
Notes
Plural is 'Böden'. Can mean 'floor' (inside a building) or 'ground/soil' depending on context.