our
The word 'unser' is the German equivalent of the English word 'our'. It is a possessive pronoun, indicating that something belongs to us or is associated with us. It can be used in the same way as 'our' in English, such as 'unser Haus' (our house) or 'unser Land' (our country).
This is our house.
In this sentence, 'unser' translates to 'our' in English. The phrase demonstrates possession, indicating that the house belongs to more than one person.
Our car is blue.
'Unser' is used here to show ownership of the car by a group of people. The sentence describes the color of the car that belongs to the speaker and at least one other person.
Our teacher is strict.
In this case, 'unser' shows that the teacher belongs to or is associated with the speaker and others. The sentence is used to express the characteristic of being strict about the shared teacher.