This is the 10190th most frequent Japanese word.
長方形
Rectangle.
In this sentence, '長方形' is used as a noun to describe the shape of the table.
このテーブルは長方形の形をしています。
This table is rectangular in shape.
Here, '長方形' refers to individual rectangular shapes that are elements of a design.
彼は二つの長方形を組み合わせて新しいデザインを作りました。
He combined two rectangles to create a new design.
In this context, '長方形' is part of an educational concept, referring to the geometric entity of a rectangle.