Rectangular

Here's my flag for Nynorsk. Because the philosophy of Nynorsk is based on the maximum divergence from Danish, Danish background of the flag is to be replaced with Icelandic, because Icelandic served as inspiration for the language creators. The flag is not rectangular in form, because... Well, that Nynorsk is strange after all.

This box is square, not rectangular.

The boxes are rectangular, not square.

A polar bear is a rectangular bear after a coordinate transform.

The word "house" evokes the mental image of a rectangular building with a roof and smoking chimney, which may be surrounded by grass and trees and inhabited by a happy family.

A ruler is a flat, rectangular measuring or drawing device with graduations in units of measurement.

The house features an atrium with a rectangular peristyle and a covered corridor, the roof of which is supported by columns with Doric capitals.

To one side of the house was a rectangular concrete slab with a roof over it.

His plot of land is rectangular in shape.

A soccer field is rectangular.