Board Thread:General discussion/@comment-30711988-20170327160055/@comment-5370131-20170327212941

Kokuu

虚空 This kanji basically is translated as "empty air/space". 空 is usually "void", "sky", "emptiness" or "air" in that context, though only 虚 is usually "hollow", "void", "cavity" or "hole". I personally deem it to make more sense for 虚空 to translate to "empty air" instead of "void".

Note: 空 (kara) is where the term "kara-throws" comes from; I personally dub those as "void-throws" in that context.

Also, Jin's description for Midair Hishougeki is a bit out-of-line compared to the rest of the descriptions.

Spear or lance

I personally would use spear for 槍, since it ties into the more traditional Chinese spear with the tassel. 矛 is my personal go-to for lance, especially for a lance-like pike.

Sharp

I personally prefer 鋭 to translate into sharp (via Sasuke Uchiha's Chidori Eisou), as the context for 尖 refers more to a pointed-tip as opposed to being overall sharp.