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
junketsu_duellion (0) junketsu_duelion (127)
chu2 (0) chuunibyou_demo_koi_ga_shitai! (1846) Nickname of series.
gen'ei_wo_kakeru_taiyou (26) gen'ei_wo_kakeru_taiyo (0) same series
gen'ei_o_kakeru_taiyo (23) gen'ei_wo_kakeru_taiyou (26) Same series
watamote (0) watashi_ga_motenai_no_wa_dou_kangaetemo_omaera_ga_warui! (338) abbrevation
tenshi_(angel_beats!) (1586) tachibana_kanade (435) Same Character.
no_panties (3313) nopan (114) same thing.
little_busters (737) little_busters! (3936)
danganronpa (530) dangan_ronpa (2915) same thing
danganronpa_1 (270) dangan_ronpa (2915) same thing
female_protagonist_(pokemon_xy) (41) serena_(pokemon) (448) name revealed
male_protagonist_(pokemon_xy) (30) calem_(pokemon) (46) name revealed
kiniro_mosaic (2) kin'iro_mosaic (264) alternative romanization
kinmoza (0) kin'iro_mosaic (264) shorthand
kinmosa (0) kin'iro_mosaic (264) shorthand
sakuya_izayoi (31) izayoi_sakuya (24024) Same thing.
bare_feet (103) barefoot (41031) Same thing.
ace_attorney (90) gyakuten_saiban (955) English name of the series
mai_hime (323) my-hime (331) Same series, one tag is a more literal translation of the title.
mai-hime (164) my-hime (331) Same title, different transliteration
mai-otome (53) my-otome (246)
shuffle (550) shuffle! (254) Same copyright, exclamation point alternative title spelling.
s-cry-ed (26) scryed (117) Same series, hyphenation alternative spelling.
kazuma_(s-cry-ed) (16) kazuma_(scryed) (43) Same character listed under alternative series name.
swimsuits (2259) swimsuit (58773) plural variant.
the_idolm@ster (493) idolmaster (41239) Stylized series name
kimikiss (129) kimi_kiss (217) Same series
vl (30) francisco_valle (24) Same artist, different name.
megane (1643) glasses (74391) Same thing.
yazawa_niko (1) yazawa_nico (3265) another way to write it
real_xxiii27s_dark_skinned_girl (0) rafaela_(real_xxiii) (0) Her name was revealed in a recent doujin written and illustrated by Real XXIII.
m32 (8) milkor_mgl (15) M32 is the U.S. name for this weapon.
robot_joints (738) doll_joints (1626) Very similar components
aenobas (693) hammer_(sunset_beach) (2605) Same artist.
shikieiki_yamaxanadu (3523) shiki_eiki (672) same character
sr-25 (4) m110 (5) Official military designation.
m240_bravo (3) fn_mag (12) Technical name for weapon.
m240 (2) fn_mag (12) Ditto.
m249 (69) fn_minimi (19) Same.
za_warudo (44) the_world (291) ZA WARUDO is just the memetic/phoenetic version of Jojo's The World
jojo's_bizarre_adventure (304) jojo_no_kimyou_na_bouken (22082) JoJo's Bizarre Adventure is the official translation of the title.
genjou_sanzou (11) genjyo_sanzo (11) the mangaka's preferred transliteration of the character name
aoki_hagane_no_arpeggio (1079) arpeggio_of_blue_steel (144) English / American version of title
toosaka_rin (3255) tohsaka_rin (3123) alternate and more popular spelling
touhou_15_demo_character_(temporary) (0) seiran (5) Name revealed here: http://i.4cdn.org/jp/1431226987449.jpg
cpu_(artist) (62) cpu_(hexivision) (48) Synonymous tags.
tailred (17) tail_red (109) same thing
atsu_toushirou (123) atsushi_toushirou (52) The character's name has been changed.
doutanuki_masakuni (64) doudanuki_masakuni (51) "Doudanuki" is the official spelling.
trap (8771) otoko_no_ko (1075) "Trap" is considered an offensive term nowadays.