your
The French word 'votre' is used as the possessive adjective for both singular and plural. It corresponds to 'your' in English when you're speaking formally or talking about multiple people. For example, 'votre livre' can mean 'your book'. Note that 'votre' should agree with the gender and number of the noun it modifies.
Your choice is interesting.
This phrase might be used to express intrigue by someone's selection or decision. 'Votre' indicates possession, thus 'Votre choix' means 'your choice'. 'Est' is the third person singular of the verb 'être' meaning 'is', and 'intéressant' translates to 'interesting'.
Is this your house?
This question could be used to confirm if the house someone is at or referring to belongs to them. 'C'est' is a contraction of 'ce' and 'est', translating to 'this is' or 'it is', 'votre' is 'your', and 'maison' means 'house'.