The bulk update request #10106 has been approved by @nonamethanks.
create alias shattering -> breaking
Shatter is a bad name because it's both a verb and a noun and can also mean the drug shatter. We already have shards and shattered to cover that, which I believe those should be kept separated because if you can't tell what is shattered, then they're only shards. Finally, some posts under shatter can also be replaced with crack, I just don't know what is the best tag to replace it on cases like post #3460234.
I don't see a reason to keep both shattering and breaking either.