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
femdom (173) female_domination (8774)
cuckoldry (0) cheating (574)
bi (13) bisexual (3612)
hands_free (0) hands-free (9534)
handsfree (17) hands-free (9534)
cum_in_anus (5) cum_in_ass (48822)
little_penis (14) small_penis (3186)
strap-on (5) strapon (5142)
one_leg_up (1825) raised_leg (14626)
naked (279) nude (507897)
spread (14) spreading (131981)
spreading_butt (22) spread_butt (5112)
spread_ass (80) spread_butt (5112)
spreading_ass (9) spread_butt (5112)
spread_pussy (10231) spreading_pussy (22)
spreading_legs (0) spread_legs (107362)
erection (321048) erect (3854)
half-erect (6014) semi-erect (1072)
bound (66011) bondage (49002)
(2220) <3 (101846)
muscles (48130) muscle (3168)
legend_of_zelda (209) the_legend_of_zelda (8629) obviously the same, but both tags are used
anamoon (0) auramoonstar (0) personague querido mio
pokemon (437) pokémon (213365)
pokèmon (12) pokémon (213365)
doctor_whooves_(mlp) (270) doctor_whoof_(mlp) (472) Same character, different spellings.
cream_pie (60) creampie (32)
invalid_color (8452) invalid_tag (46611)
twinkle_sez (3) twinkle-sez (1614)
m/m/f (0) male/male/female (49)
herm_on_male (49) herm/male (1372)
tit_job (5) titfuck (12653)
breastjob (6) titfuck (12653)
fat (1787) obese (9328) combine the catagories
herm (20914) intersex (98181) The tags "herm," "maleherm," and "cuntboy" (and a few others) all fall under the classification "intersex;" I wouldn't alias the other two as they are often excluded or searched seperately.
herm/male (1372) intersex/male (8764)
herm/female (772) intersex/female (10158)
futanari (474) intersex (98181)
bionic (26) cybernetics (3976) The alias is a broader, more up-to-date synonym of the tag.
3_eyes (305) three_eyes (21)
biomechanical (25) cybernetics (3976) They both refer to the same thing
gay (59666) male/male (136379) e621 tagging
straight (61834) male/female (151406) e621 tagging
lesbian (14701) female/female (24319) e621 tagging
udders (2497) udder (2)
ahri_(lol) (0) ahri (967) Same character
pokemorph (13) pokémorph (13600)
tits (1518) breasts (674488) Same thing
boobs (183) breasts (674488) same thing
futa (0) futanari (474) same thing