Board Thread:General discussion/@comment-30711988-20170327160055/@comment-5370131-20170327213746

Roar

咆, 哮 or 轟

One of them is either roar or howl, but the very latter is more of a context of "resounding/thundering". For the latter, I mainly use "boom" to refer to the latter context of "thundering", as in "booming thunder", hence the "booming" translation for Terumi's Gouga Soutenjin. This is so it's not mixed up with the "roar in your face" type of "roar" (mainly 哮 or 吼).