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 (149) female_domination (6344)
cuckoldry (0) cheating (554)
bi (13) bisexual (3072)
hands_free (0) hands-free (7660)
handsfree (16) hands-free (7660)
cum_in_anus (3) cum_in_ass (38322)
little_penis (13) small_penis (2359)
strap-on (4) strapon (4260)
one_leg_up (1308) raised_leg (11951)
naked (229) nude (401587)
spread (14) spreading (106139)
spreading_butt (20) spread_butt (3490)
spread_ass (81) spread_butt (3490)
spreading_ass (9) spread_butt (3490)
spread_pussy (8031) spreading_pussy (18)
spreading_legs (0) spread_legs (87214)
erection (254353) erect (4336)
half-erect (4317) semi-erect (1077)
bound (51967) bondage (39042)
(2223) <3 (72205)
muscles (48186) muscle (3188)
legend_of_zelda (200) the_legend_of_zelda (6515) obviously the same, but both tags are used
anamoon (0) auramoonstar (0) personague querido mio
pokemon (365) pokémon (155952)
pokèmon (11) pokémon (155952)
doctor_whooves_(mlp) (254) doctor_whoof_(mlp) (472) Same character, different spellings.
cream_pie (59) creampie (26)
invalid_color (7195) invalid_tag (37114)
twinkle_sez (3) twinkle-sez (1190)
m/m/f (0) male/male/female (37)
herm_on_male (49) herm/male (1094)
tit_job (5) titfuck (9769)
breastjob (5) titfuck (9769)
fat (1741) obese (6817) combine the catagories
herm (18463) intersex (74763) 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 (1094) intersex/male (5691)
herm/female (562) intersex/female (6725)
futanari (476) intersex (74763)
bionic (21) cybernetics (2616) The alias is a broader, more up-to-date synonym of the tag.
3_eyes (63) three_eyes (21)
biomechanical (21) cybernetics (2616) They both refer to the same thing
gay (59680) male/male (93850) e621 tagging
straight (62213) male/female (102693) e621 tagging
lesbian (14454) female/female (17237) e621 tagging
udders (1796) udder (2)
ahri_(lol) (0) ahri (738) Same character
pokemorph (13) pokémorph (9907)
tits (1536) breasts (512232) Same thing
boobs (168) breasts (512232) same thing