Body Parts

Head
Visage, Dial, Cranium, Cerebrum, Cranial, Crown, Pate, Crania, Pallet, Tiara, Brainpan, Plat, Skull, Poll, Culmination, Countenance, Dome, Dream Box, Block, Craniu', Pate

Body
Bodice, Physique, Frame, Bulk, Form, Torso, Carcass, Chassi, Lithe form, Willowy, Chassis, Figure, Anatomy, Skeleton, Crux, Fuselage, Structure

Legs
Appendages, Upper limbs, Pedates, Lower limbs, Sticks, Pillars, Pistons, Pinions, Shanks, Gams, Fulcrums, Limbs, Stilts, Appendai, Pallets

Lips/Muzzle/Nose
Pan, Map, Mug, Nasal passages, Nares, Nostrils, Maw, Probiscus, Zephyrs, Kisser, Velveteens, Plush, Chops, Orifice, Maxilla, Mandible, Labrums, Velvets, Labias, Kissers, Trap, Beak, Aperture, Flytrap, Door, Gob, Yap

Hooves
Pedestals, Flints, Nails, Obsidians, Titaniums, Daggers, Talons, Claws, Scythes, Diamonds, Peds, Blades, Graphites

Teeth
Enamels, Dentals, Pearls, Ivories, Inscicors, Nippers, Grinders

Ears
Acoustics, Accoustic, Appararus, Tympanums, Auditives, Auds, Lobes, Listeners, Thorns, Doublets, Orrilles, Harks, Auditories, Duos, Cochlea, Diagnostics, Pricks, Pinnacles, Lappits Auricles

Neck
Nape, Curvature, Serpentine, Crest, Boa

Tail
Whipcord, Caudal, Plume, Hock kisser, Pendulum, Tassels, Ribbons, Plumage, Cords, Wires

Mane
Banner, Banter, Dreads, Tassels, Tendrils, Threads, Curtain, Strings

Eyes
Optics, Orbs, Ocules, Occuli, Occulars, Twin pools, Pool, Spheres, Orbits, Orcia, Globes, Ooids, Visionaries, Opticals, Voids, Chasms, Lamps, Lampis, Lampistra, Occulus, Tabiries, Lanterns

Colors

Chestnut
Crimson, Scarlet, Bloody, Blood-washed, Flame-hued, Bloodstained, Flame licked, Sanguine, Carmin, Flaxened, Rouge, Ruby, Carnelian, Burgundy, Cherry, Vermillion, Cardinal, Sienna, Maroon, sorrel, fuscous, henna, roan, vermillion, flame-licked, flame-kissed, flame-touched, bloodwash'd, flame hu'd, honey, amber, bronze, fire licked, maroon

Black
Ebony, Lucid, Charred, Charcoal, Obsidian, Smoke-washed, Shadowed, Raven, Midnight, Sable, Inky, Jet, Jetty, Onyx, Onyxite, Atramentous, Pitch-black, Pitch-dark, Stained, Swarthy, Ebonite, Stygian, Nigrescent, atramentous, brunet, charcoal, clouded, coal, dingy, dusky, ebon, ebony, inklike, jet, livid, melanoid, murky, nigrescent, jet-black, nigrous, obsidian, onyx, piceous, pitch, pitch-dark, pitch-black,raven, sable, shadowy, slate, somber, sombre, sooty, starless, swart, swarthy, black, dark, dusty, gloomy, inky, jetty, pitch-black, midnight, smokewash'd, shadowed, lucid, charred, stained, swarthy, ebonite, stygian

Gray/White
Silver, Porcelain, Lactsescene, Cretaceous, Lactsescent, Ivory, Rime, Moon-washed, Ashen, Alabaster, Pure, Colorless, Pale, Pearly, Iridescent, Ghost, Platinum, Hoary, Pewter, Steel, Leaden, achromatic, achromic, alabaster, ashen, blanched, bleached, bloodless, caucasian, chalky, clear, fair, frosted, ghastly, gray, hoary, immaculate, ivory, light, milky, neutral, pallid, pasty, pearly, pure, silver, silvery, snowy, spotless, stainless, transparent, unblemished, unsullied, wan, waxen, ash, ashen, cinereal, clouded, dappled, dingy, dove, drab, dusky, moonwash'd, dusty, grey, heather, iron, lead, leaden, livid, mousy, neutral, oyster, pearly, peppery, powder, sere, shaded, silvered, silvery, slate, smoky, somber, stone

Palomino
Flaxen, Sun kissed, Gilded, Sun touched, Gold brushed, Golden, Amber, Canary, Honey, Citrine, Sunkist, Aureate, Ginger, Mango, aureate, auric, auriferous, aurous, aurulent, blond, blonde, caramel, dusty, flaxen, gold, golden, honeyed, mellow yellow, ochroid, straw, tan, tawny, wheat

Bay
Russet, Auburn, Mahogany, Mohogan, Bloody, Sepia, amber, bay, bister, brick, bronze, burnt sienna, mahogany, blood bay, russet, mohegan, henna, fuscous

Dun
Fawn, Tawny, Tan, Buff, Henna, Fuscous

Cream
Camelia, Talc, Taupe, Off-hue, Near white(or any other word for white)

Other
There are some other colors out there as well. Most can use pairings of the above mentioned with other colors. Roan can be called, Snow Flecked(or just Flecked), Frosted. The dun's are a wide range of colors...Depending on the main shade of the dun, you will be using a different word. Those above are for your average, normal dun colored horse. If you are a red dun, silver dun, copper dun...go look for a picture of your horse and describe it with the other colors listed here as well. All duns have a dorsal stripe and zebra barring on their legs...A Buckskin however has a yellowish-gold body coat, with black mane/tail and legs...they do not have a dorsal stripe. Another differance between Dun and Buckskin is that a dun will be less apt to have little or no natural "bloom" or shine in the coat. The Dun coloration is for camoflauge. Shine would bring attention to the horse. For Paints, you can use Mapping, Marbled, Pied, Multi-colored, Motley. For Appys, Spangled, Splattered, Spattered, Speckled, Splotchy, Studded, Sprinkled, Stippled.
You may also have noticed I do not have a section for Sorrel. Sorrel and Chestnut are in fact two different colors that look VERY similar. Both CAN have flaxen manes and tails or darker manes and tails. However a chestnut will have reddish undertones while a sorrel will have more yellowish undertones. Also, on a sorrel, if you look down their legs, most get lighter in color the closer to the hoof. Belgians are a prime example of this, sometimes they will look as if they have dirty stockings or socks..not so, they are sorrel. Chestnut will be uniform in color all the way down.
There are some rare colors out there! Don't be afraid to use them. I'll list them below and if you would like a word or something describing your color and are having trouble...just e mail me at jaded_huntress@hotmail.com with the picture of the horse you are using and I'll help you out. Colors Often Not used
Red Dun
Red Dun Roan
Bay Roan
Black Chestnut
Cremello
Perlino
Champagne
Ivory Champagne
Smokey Black(looks black, sometimes will fade more in summer)
Brindle
Grulla(or Grullo)
Black Silver
Chocolate Sorrel
Silver Dapple(a very NON-silver color)
Chocolate Palomino
Paint Patterns

Paint patterns are: Tobiano, Overo, Tovero, Frame Overo, and Sabino.

Appaloosa Patterns
Leopard
Near Leopard/Semi Leopard
Full Blanket
Extended Blanket
Rump Blanket
Minimal Blanket
Snowflake
Snowcap
Color, Coat and Refined

Color

hue, hu'd, pigment, tint, shade, tinge, dye, tincture, tone, spectrum, variants, contrastories, emulsion Refined

chiselled, finely tuned, elegant, tapered Coat

pelt, hide, canvas, cover, cloak, armour

Gender/Ages

Female
Feminine, Semstress, Femme, Matron, Matriarch, Paramour, Nymph, Banshee, Fae, Inamorata, Regina, Vixen, Vix, Ess, Seraph, Donna, Belle, Midge, Maiden, Succumbus, Xanthippe, Dame, Femoral, Femora, Misstress, Bruja, Dove, Bitch, Damsel, Harlot, Bestian, Wench, Shrew, Baroness, Virago, Doe, Virgo, Naiad, Witch, Ingoble, Hussy, Czaress, Figurine, Fetale, Huntress, Dryad, Harridan, Spitfire, Kitten, Minx, Jezebel, Lamia, Gorgon, Huntress, Brutale, Sovereign, Monarch, Brood, Matron, Matriarch, Paramour, Nymph, Banshee, Fairy, Inamorata, Diabla, Regina, Vixen, She-Devil, Ess, Seraph, Hellion, Donna, Elle, Lass, Belle, Maid, Maiden, Succubus, Demoness, Deviless, Xanthippe,, Lady, Dame, Femme, Femme Fatale, Femmora, Enchantress, Seductress, Mistress, Female, Miss, Bruja, Temptress, Goddess, Queen, Dove, Damsel, B!tch, Harlot, Madam, Beastian, Wench, Shrew, Princess, Baroness, Duchess, Virago, Doe, Pixy, Nixie, Naiad, Warrioress, Witch, Figurine, Hag, Wanton, Ignoble, Jade, Hussy, Czaress, Kelpie, Sprite, Huntress

Male
Steed, Masculine, Masculi, Brute, Stag, Hessian, Stud, Virile, Patron, Patriarch, Gladiator, Baron, Captor, Czar, Caeser, Devil, Tycoon, Mogul, Sahib, Caliph, Capon, Behemoth, Titan, King, Brujo, Bronco, Bronc, Charger, Vagabond, Suzerain, Liege, Sovereign, Balaster, Bastard, Macromime, Stud, Male, Virile, Beast, Stag, Hessian, Masculine, Patron, Patriach, Warrior, Soldier, Diablo, He-Devil, Devil, Demon, Lord, Steed, Stallion, Protector, Sir, Buck, Guardian, Charger, Courser, Knight, Brujo, Monarch, Lad, Enchanter, Tempter, Seducter, Warlock, Master, Gladiator, Brute, God, King, Prince, Baron, Duke, Wizard, Captor, Figure, Chief, Chieftain, Commander, Captain, Boss, Principal, Czar, Tycoon, Mogul, Caliph, Sahib, Caesar, Capon

Mother/Father
Dam, Maternal, Sire, Paternal, Origin, Source, Creator, Procreator, Ancestor, Warden, Forebear

Foal
Babe, Lamb, Fawn, Tike, Toddler, Youth, Amateur, Juvenile, Infant, Puerile, Flicka, Filla, Bantle(ss), Newness, Babe, Lamb, Calf, Fawn, Wee One, Lil'One, Tyke, Toddler, Youth, Child, Infant, Juvenile, Puerile, Youngster, Stripling, Sappling, Filla (filly)

Middle Aged
Primed, Seasoned

Old
Antiquem Advanced, Senescent, Veteran, Decrepit, Aged, Ancient, Broken Down, Debilitated, Deficient, Doddering, Elderly, Enfeebled, Exhausted, Experienced

Horse
equine, ungulate, quadruped

Attitudes/Feelings/Moods

Happy
Buoyant, Bliss, Estatic, Elated, Euphoric, Joyful, Joyous, Lighthearted, mirthful, gay, bubbly, hyper, hypo

Sad
Morose, Saturnine, Lugubrious, Dour, Melancholy, Somber, Blue, Dejected, Drear, Grieving, Depressed, Dismal, Joyless, Mirthless, Triste, morose, lugubrious, dreary, greiving, down, lustless

Arrogant
Haughty, Bold, Aristocratic, Cocky, Insolent, Disdainful, Proud, Presumptuous, Lofty

Aggressive
Bellicose, Pugnacious, Belligerent, Asperous, Assertive, Militant, Pushful, Combative, Imperious, willful, hot, waspy, asperous, assertive, militant, pushy, combative, imperious, dangerous, deadly

Wise
Sensible, Prudent, Sagacious, Judicious, Gnostic, Insighted, Perceptive, Sage, Sohpic, Intuitive, astute, Cunning, noble minded

Calm
Phlegmatic, Halcyon, Placid, Composed, Nonchalant, care-free, easy going, soft

Hatred
Abhorrence, Enmity, Animosity, Loathing

Angry
Piqued, Irked, Vexed, Acrimonious, Choleric, Indignant, Irate, mad, stroppy, in bloodlust, vengeful

Tired
Fatigued, Enervated, Jaded, Weary, strung out, exhausted

Energetic
Vigorous, Peppy, Dynamic, Lusty, Strenuous, Emphatic, Vibrant, preppy, flying, hypo, restless

Desire
Lust, Concupiscence, Edge, Torment, Wish, Fancy, Fantasy, Exigency, lustful, need

Destroy
Lacerate, Decimate, Shred, Despoil, Scathe, Inpair, Infect, Lambaste

Surroundings

Terrain/Land Earth/Ground/Area
bailiwick, contour, country, domain, dominion, field, form, ground, land, profile, province, region, shape, soil, sphere, territory, topography, turf, circumference, compass, loam, terra, terrain, abode, domicile, environ, castle, roost, land, dwelling, residence, hearth, habitat, kingdom, realm, empire, monarchy, lair, lithosphere, terra firma, roof of hell, eaths face, tetonic plates

Sky
azure, celestial sphere, empyrean, firmament, heavens, lid, the blue, upper atmosphere, welkin, blue yonder

Surroundings
ambiance, atmosphere, aura, backdrop, background, circumstances, climate, conditions, context, domain, element, encompassment, entourage, habitat, hood, jungle, locale, medium, milieu, neighborhood, purlieus, scene, scenery, setting, situation, status, stomping ground, surroundings, terrain, territory, turf, zoo

Wind
air, big blow, blast, blow, breath, breeze, chinook, cold snap, cyclone, dirt, draft, draught, flurry, flutter, gale, gust, mistral, puff, skiff, tempest, typhoon, wafting, whiff, whirlwind, whisk, zephyr, Squall

Movements

Forward Movements embarks, stalks, walks, strides, drifts, slinks, glides, runs, stumbles, slides, dances, shuffles, sways, struts, ingresses, saunters, prances, advances, collaborates, rendition, intercepts, navigates, animates, ignites, Gaits, Paces, Shifts

Size/Stature/Looks/Etc.

Soft
Talcum, Gentle, Camelia, Velvet, Silk, Sleek

Big
Prodigious, Colossal, Mammoth, Rotund, Jumbo, Large

Small
Svelte, Miniscule, Slender, Lithe, Petite, Statuesque, Wispy, Willowy, miniscule

Muscular
Brawny, Sinewy, Stalwart, Strapping, Burly, Beefy, Rugged, Thickset,

Ask
inquire, query, question

Reply
retort, return, hiss, reply

Destroy
lacerate, deimate

This was taken from another site, but not word for word, I have changed it in some parts, and am still adding to the very long list.