User blog comment:Xilinoc/Ch. 592 - Marching Out the ZOMBIES 3/@comment-11446176-20140806073523/@comment-25275251-20140807044656

And yet growl makes sense as the release command for Haineko, being that the translation is Ash Cat.

For both Sougyo no Kotowari and Katen Kyokotsu their release commands are references to the duality of the blades and even hint, however obliquely, to the nature of their abilities

For Gonryomaru and Tsuchinamazu, I don't feel like we have necessarily seen enough of them to for sure say one way or another as to how their release commands relate to them. I feel like this holds true for Engetsu as well. We haven't really seen much of it so far and thus can't judge one way or another as to it's abilities. We don't even know if Getsuga Tenshou is one of his abilities or if he picked it up from being so closely linked with Ichigo's soul for so long.