A sound series is a group of characters containing the same sound component. We show you all of the characters in the sound series, and highlight their pronunciation so you can see everything at a glance.

This will show you the range of different pronunciations a sound component can have. Super useful!

A semantic series is a group of characters containing the same semantic component. We list every character in our dictionary that uses the component as a semantic component, and we highlight their original meanings.

Remember, the original meaning is the only meaning directly related to the character's form, so this lets you easily see the relationship between component meaning and character meaning!

Empty components don't express sound or meaning. Sometimes they're just there to distinguish one character from another. Other times, the component was originally something else, but corrupted over time into what it is today.

This segment will show you all the characters containing the in which the head component is an empty component.

Radicals are a traditional way of organizing paper character dictionaries. Many people think that "radicals" and "semantic components" are the same thing, but they're not!

Compare the characters here using 立 as a radical with the characters in the semantic series and empty component lists above, and you'll see what we mean!