noun
neighbor
A2
Nachbar means 'neighbor'. Masculine noun der Nachbar; plural die Nachbarn. It follows the weak/ n-declension: many oblique forms add -n (des/den Nachbarn, den Nachbarn plural dative). Feminine is Nachbarin. Used for people living nearby; declines with articles and case endings irregular compared to strong nouns.
Examples
Die Familie sagte, dass sie den Nachbarn um Hilfe bat, nachdem das Auto nicht startete.
The family said that they asked the neighbor for help after the car wouldn't start.
Der Nachbar hat mir heute beim Tragen geholfen.
The neighbor helped me carry my things today.
Mein Nachbar ist sehr freundlich.
My neighbor is very friendly.
Details
Mnemonics
Picture the person who lives in the apartment next door.
Sounds like 'nach-bore' — imagine someone nearby being boring (a neighbor).
Think of a man with a toolbox next door: der (masculine) Nachbar.
Notes
Many animate masculine nouns use the weak noun declension (Nachbar → Nachbarn in many cases).