A pattern of squares is called a mosaic.
The back row of squares on a draughts board is called a crown-head.
the combination of the numbers and letters are grid references. the squares are called the grid.
Squares. I'm serious. Not everything in math has a fancy name. * * * * * Except that in this case there is: they are called perfect squares.
A grid, or on orthogonal grid, to be more precise.
gametes
squares
There are many squares in Amsterdam, Holland. Some of them are: Markenplein Muntplein, Amsterdam Museumplein
Yes, they are called squares. Squares are a subset of rectangles.
Squares of primes.
perfect squares
It is called a pyramid.