our school
In French, "notre" means "our" in English.
It means "our father" (it should be - Notre Père)
"our little house"
Notre Dame means our lady in french. Our lady is the English translation
"Nôtre Dome" is "our dome". However, if you meant to ask about "Nôtre Dame", that would mean "Our Lady" and is the name of a number of cathedrals, the most famous sitting in the center of Paris.
notre maison
notre
our lady, in religious vocabulary. The reference is to the Virgin Mary.
notre voyage, notre trajet
The literal translation is "dans notre maison".
"Notre"
"... est une école" means "... is a school" in French.