Pojo's Anime: Witch Hunter Robin Glossary
 

Orbo – Chemical developed by Solomon and perfected by Zaizen. Able to neutralize the powers of witches, it is standard equipment during a witch-hunt. It can also be loaded into bullets for use with the standard side arm, the Orbo Gun.

Craft – The powers of a witch. Robin’s is control over flames, etc.

Witch – Classification used to identify a Craft-user targeted for a hunt.

Seed – Person related to a Craft-user who may have Craft abilities

Solomon – International witch-hunting organization based in Europe. Many branches are located all over the world.

STN-J – Japan branch of Solomon. Run by Zaizen.

Hunter – One who hunts witches for Solomon.
 

Thanks to Ace of Spades for sending this to us!