Learn Dutch: De huurder had geen vriezer in de keuken. - The tenant had no freezer in the kitchen.

When a verb stem ends in -r, Dutch adds -der to form the noun for a person doing the action. The verb is huren (to rent), so its stem is huur. Adding just -er would make huurer, which is awkward to pronounce, so a -d- is inserted to make huurder.

Is vriezer also formed from a verb, even though it is a machine instead of a person?

Yes! The suffix -er is used to create nouns for both people who perform an action (agents) and objects that perform an action (instruments). Vriezer comes from the verb vriezen (to freeze), making it literally a thing that freezes.

Since huurder means 'tenant', how would you refer to the landlord?

The verb huren means 'to rent' (as a tenant), while verhuren means 'to rent out' (as a landlord). Therefore, the landlord is the verhuurder. Both use the -der suffix because their verb stems end in -r.

Why do we use geen vriezer instead of niet een vriezer to mean 'not a freezer'?