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
hoto_moka (0) hoko_mocha (0) Alternate spelling
aiwatan (116) ai-wa (145) Proper name for the artist
ot-nm (111) hebino_rai (29) Proper artist name
riko_(mahou_girls_precure!) (1) izayoi_riko (111) Character's full name has been revealed in a later episode
shiki_eiki (1566) shikieiki_yamaxanadu (3524) full name
yabusame_houren (0) yabusame_houlen (0) Official romanization, designed to connect to Len'en's title.
cave_story (60) doukutsu_monogatari (250) english title -> japanese title
gray_hair (647) grey_hair (39071) difference in spelling
komano_aunn (69) komano_aun (179)
ushiromiya_lion (442) ushiromiya_leon (69) Different translations