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 (160) female_domination (6993)
cuckoldry (0) cheating (569)
bi (13) bisexual (3232)
hands_free (0) hands-free (8171)
handsfree (16) hands-free (8171)
cum_in_anus (3) cum_in_ass (41133)
little_penis (14) small_penis (2538)
strap-on (5) strapon (4485)
one_leg_up (1428) raised_leg (12575)
naked (241) nude (428306)
spread (14) spreading (113410)
spreading_butt (20) spread_butt (3936)
spread_ass (82) spread_butt (3936)
spreading_ass (9) spread_butt (3936)
spread_pussy (8564) spreading_pussy (18)
spreading_legs (0) spread_legs (92959)
erection (272618) erect (4249)
half-erect (4830) semi-erect (1074)
bound (55511) bondage (41617)
(2223) <3 (79739)
muscles (48185) muscle (3193)
legend_of_zelda (208) the_legend_of_zelda (7026) obviously the same, but both tags are used
anamoon (0) auramoonstar (0) personague querido mio
pokemon (375) pokémon (168773)
pokèmon (11) pokémon (168773)
doctor_whooves_(mlp) (256) doctor_whoof_(mlp) (472) Same character, different spellings.
cream_pie (60) creampie (28)
invalid_color (7632) invalid_tag (39928)
twinkle_sez (3) twinkle-sez (1292)
m/m/f (0) male/male/female (37)
herm_on_male (49) herm/male (1161)
tit_job (5) titfuck (10505)
breastjob (5) titfuck (10505)
fat (1747) obese (7344) combine the catagories
herm (19102) intersex (80258) 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 (1161) intersex/male (6399)
herm/female (611) intersex/female (7496)
futanari (476) intersex (80258)
bionic (23) cybernetics (2944) The alias is a broader, more up-to-date synonym of the tag.
3_eyes (63) three_eyes (21)
biomechanical (21) cybernetics (2944) They both refer to the same thing
gay (59685) male/male (104312) e621 tagging
straight (62227) male/female (114859) e621 tagging
lesbian (14461) female/female (18979) e621 tagging
udders (1983) udder (2)
ahri_(lol) (0) ahri (786) Same character
pokemorph (13) pokémorph (10847)
tits (1538) breasts (551524) Same thing
boobs (183) breasts (551524) same thing
futa (1) futanari (476) same thing