The Easy Lookup Finals Index for Traditional Chinese Characters (Finals Index for short) is one of three Easy Lookup indexes included in the Easy Lookup Chinese English Dictionary.
It divides Chinese characters into 12 categories each with a maximum of 16 groups based on based on the shape of their final element.
Because characters are categorized (and grouped) entirely based on shape, you don't need to know a characters radical or pronounciation to look a character up.
Below you can see the 12 categories and their associated groups for the Finals index.
Each category has a name as well as a shape associated with it.
The shape for a category is typical of all groups within that category. For example:
Groups within the Box category include characters that end with some variation of the Box 囗 shape:
Groups within the K category include characters that end with some variation of two uncrossed legs:
Groups within the Bottom category only include characters that end with some variation of the Bottom 凵 shape:
Note that the Bottom category includes what could be thought of as a bottom left corner as in 亡, or a bottom right corner as in 彗.
Groups in turn contain characters that end with the Group shape.
Some groups within the Initials index contain a lot of characters. The 氵 group, which is part of the 丶 category in the initials index has over 400 characters. That's a lot of characters to search through. And even with sub groups, the number can be quite large. Here is the 丶 sub-group of that same group:
When searching for a character that's initial element is part of a large group, it can be easier to find that same character using the finals index.
For example, 溏 is part of this Finals group:
涪 is part of this Finals group:
In both cases, there are slightly less characters to search through.
With the Finals index it is also possible to see characters with the same endings grouped together. Often in cases like this these characters will have the same pronounciation or pronounciations that rhyme. That can make it easier to remember a characters' pronounciation.
Another advantage of seeing characters with the same end elements grouped together is that it can make it easier to learn the cangjie input codes for those characters. Cangjie is a shape based input system that allows you to touch type Chinese characters.
Having the option to see characters grouped together by final elements, and also having the option to directly navigate between these character entries, makes it easy to see changes in cangjie codes, and easy to see changes in pronounciation, if you are interested in learning that.