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
bunny (12959) rabbit (2921) same thing
eyes_closed (103318) closed_eyes (149930)
cyan_hair (16) aqua_hair (46464) Same thing, really
turquoise_hair (5) aqua_hair (46464)
ichigo_(k-on!) (0) wakaouji_ichigo (141) full character name
tewi (4) inaba_tewi (9121) Combine the tags
race_queen (2149) racequeen (0) removing the space
tagme_(artist) (288) artist_request (48015)
katekyo_hitman_reborn! (1017) katekyo_hitman_reborn (854)
tie (897) necktie (142992)
kyuubee (1323) kyubey (6591)
sakuraba_milfeulle (1) milfeulle_sakuraba (460) The second is much more used.
defoko (2) utane_uta (115) fan nickname to official name
willaim (0) petticoat (6704) I love it.
cop (0) police (3088)
xmas (2) christmas (13916)
boobies (2) breasts (638176)
boobs (14) breasts (638176)
bunny_ears (18052) rabbit_ears (5645)
yamiko (91) yamiya (71) http://www.pixiv.net/member.php?id=176223 artist's pixiv is やみや
big_boobies (0) big_breasts (207)
big_boobs (0) big_breasts (207)
lord_genome (12) lordgenome (175) Lordgenome is the official translation but alot of fans use Lord Genome
tengen_toppa_gurren-lagann (614) tengen_toppa_gurren_lagann (6809) Official spelling is gurren_lagann
blond_hair (273) blonde_hair (560923)
love_is_war (3) koi_wa_sensou_(vocaloid) (538) English name to Japanese name
cosmo_p (0) cosmo_(bousoup) (32) Artist's full username
spiked_hair (16277) spiky_hair (1427)
cloud (95830) clouds (5324) plural (many clounds on a picture)
moero!_justice_gakuen (71) project_justice (10) Japanese to English title
shiritsu_justice_gakuen (130) rival_schools:_united_by_fate (9) Japanese to English title
kemonomimi (291) animal_ears (259024) Japanese and English synonyms.
protoman (0) blues_(rockman) (101) US name=JPN name
toono_akiha (775) tohno_akiha (352)
blushing (79) blush (755496) The same thing, and blush is more common.
griffin (142) griffin (142)
soryu_asuka_langley (2773) souryuu_asuka_langley (5755)
ultimate_madoka (3052) goddess_madoka (827) same thing, latter is more popular
gryphon (8) griffin (142)
donut (40) doughnut (4479)
horo (87) holo (1537) official spelling
megaman (30) rockman (4693) USA ver.--->Jpn ver.
megaman_(series) (0) rockman_(series) (1) USA ver. --> Jpn ver.
fatal_frame_iv (0) fatal_frame_4 (222) Roman Numerals
female_protagonist_(pokemon_bw2) (262) mei_(pokemon) (2260) Official name given to the female protagonist in Pokémon Black 2 and White 2.
male_protagonist_(pokemon_bw2) (132) kyouhei_(pokemon) (553) Official name given to the male protagonist in Pokémon Black 2 and White 2.
double_buns (361) double_bun (36634) Same concept, one just has the plural.
laugh (121) laughing (5356) Same thing
hayate_no_gotoku (1) hayate_no_gotoku! (2478) …
alicia_satsuki_mclean (0) alicia_satsuki_mcclane (1)