You can suggest a new alias, but they must be approved by an administrator before they are activated.
An example of how to use this: (Neon_Genesis_Evangelion is the tag and Evangelion is the alias. Evangelion -> Neon_Genesis_Evangelion)


Alias To Reason
large_breasts (58492) big_breasts (149983)
large--breasts (0) big--breasts (0) Another cancel request. Someone aliased large_breasts > big_breasts when it ought to be separate as a size progression. Lots of people are throwing in this now invisible tag, either leaving out or deleting the alias target "big"