"He is about your age."

Translation: Ele tem mais ou menos a sua idade.

[Ker]

"Vossa", "Vosso" is basically the same as "Sua", "Seu", however it is extremely formal and rarely used in Brazil. "Vosso/Vossa" is the possessive for "Vós", the third person plural, and "Seu/Sua" is the possessive for "Ela, Ele, Você", the third person singular.

[everback]

Ele tem quase a sua idade. <almost>

[whitebox]

Why is quase (almost = duolingo definition) used and not sobre?

[KTKee-EnglishEng]

So if you want to say about in relation to measurement, tem mais ou menos or quase are the two main ways of saying it?