Parkin is a traditional cake from Northern England, primarily made of oatmeal and ginger. It is a popular treat during bonfire night celebrations in Yorkshire and Lancashire. However, there are several synonyms for the word "parkin." One of the most common ones is gingerbread, which is a sweet and spicy cake made of ginger and molasses. Another synonym is treacle cake, which is a rich cake made of treacle, or molasses, and often flavored with spice. Finally, barmbrack is another synonym for parkin - a traditional Irish cake made of dried fruits and spices. Regardless of the name, these cakes are delicious treats that are enjoyed by many.