Shaker refers to the style of the door. The shaker style is characterized by five piece door with a recessed center panel. However, some cabinet lines differ in the drawer (different from the cabinet doors).

See our shaker cabinet refinsihing example(s)

https://en.wikipedia.org/wiki/Shaker_furniture

Shaker furniture is a distinctive style of furniture developed by the United Society of Believers in Christ's Second Appearing, commonly known as Shakers, a religious sect that had guiding principles of simplicity, utility and honesty. Their beliefs were reflected in the well-made furniture of minimalist designs