kvadrat

1. colloq. (of floor area) square metre
   Iznajmljujemo stan od pedeset kvadrata. — We're renting a fifty-square-metre flat.
   Koliko košta kvadrat na Vračaru? — How much is a square metre in Vračar?
2. square
   Nacrtaj kvadrat sa stranicom od pet centimetara. — Draw a square with five-centimetre sides.
   Stolnjak je bio na crvene i bele kvadrate. — The tablecloth had red and white squares.
3. (in maths) square; second power
   Tri na kvadrat je devet. — Three squared is nine.
   Podigni taj broj na kvadrat. — Square that number.

When talking about housing, kvadrat almost always means a square metre.