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
tea_gardner (2297) mazaki_anzu (883) same character
mazaki_anzu (883) tea_gardner (2297) Same character. English name preferred.
reverse_newhalf (0) cuntboy (36643) Gelbooru trying to be difficult.
zero_suit_fox (185) zero_suit (12364) We don't need characters and clothing in the same tag.
newhalf (1119) dickgirl (156639) Same thing.
dbz (52) dragon_ball_z (53617) Series alias
big_balls (324024) big_testicles (22818) same thing
large_balls (25359) large_testicles (18852) same thing
huge_balls (172402) huge_testicles (30132) same thing
original_character (301379) fan_character (109962) Same thing pretty much.
fan_character (109962) original_character (301379) Pretty much the same thing.
herm (41084) futanari (678568) Same thing.
road_to_ninja (2) naruto:_road_to_ninja (798) Same subject
nipple_ring (9684) nipple_rings (11420) same thing
anal_rape (3060) rape (266621) Unnecessary. "anal_sex rape" works fine.
ass_rape (1) rape (266621) Unnecessary. "anal_sex rape" works fine.
consensual_tentacle_sex (629) tentacle_sex (45824) The "consensual" part is unnecessary.
tentacle_rape (20955) tentacle_sex (45824) "tentacle_sex rape" would work better than "tentacle_rape".
braless (2041) no_bra (239247) same tag
tie-bra (22) front-tie_top (39672) same tag
cum_in_pussy (528841) cum_inside (757781) same tag
cum_inside (757781) cum_in_pussy (528841) same tag
therealshadman (4) shadman (2889) Same artist
garterbelt (389) garter_belt (63800) same tag
pocket_pussy (166) fleshlight (2523) same thing (synonymous)
saint_patrick's_day (19) st._patrick's_day (643) Same search
straddling (78569) cowgirl_position (230108) Pretty much the same position.
bound (237342) bondage (365287) Same search. "Bondage" is used more.
pinkamena_(mlp) (2729) pinkamena (3) "(mlp)" is an unnecessary addon from e621.
smiling (136252) smile (3978936) same thing
dressed (1554) clothed (1174108) Same thing
absurdres (1557072) high_resolution (154350) practically same thing
female/female (82708) yuri (418198) Same thing. "Yuri" is used much more and is easier to type.
male/male (432961) yaoi (475423) Same thing. "Yaoi" is used much more and is easier to type.
male/female (524362) straight (865201) Same thing. "Straight" is used more.
sonicboom53 (0) argento (1434) Same artist
ben10 (6) ben_10 (17573) punctuation
pokephilia (48003) poképhilia (10939) misspelling
female_on_futa (6255) futa_with_female (26395) =
final_fantasy_xv (4893) final_fantasy_versus_xiii (28) Renamed
excellia_(coc) (81) excellia_(corruption_of_champions) (477) Same character
kin_tsuchi (330) tsuchi_kin (10) Same character, Eastern name order for a Japanese character
scifi (2076) sci-fi (4965) the same
dmc (27) dmc:_devil_may_cry (436) Abbreviated title.
dynasty_warriors (3081) sangoku_musou (89) Same game. English title.
colo (548) nagrolaz (2) same artist
spazkid (683) spazkidin3d (0) same artist
pumpkinsinclair (2967) jesus_avalos (6) same artist
danmachi (102) dungeon_ni_deai_wo_motomeru_no_wa_machigatteiru_darou_ka (9660) Short name
blush (4678881) blush (4678881) Same thing