Short: above the knee length.
Knee-length: hem just covers the knees
High-low: hem falls from slightly below the knee to ankle in the front, ankle to train-length in back
Midcalf/ballet-length: hem reaches to center of the calf to ankle length.
Floor-length: hem fully skims the floor.
Sweep train: shortest train, extends back 8 to 12 inches after touching floor.
Chapel train: trails 3½ to 4½ feet from waist.
Cathedral: flowing train, usually 6½ to 7½ feet from waist.
Extended cathedral or Monarch train: cascading 12 feet from waist.
Brocade: Jacquard-woven fabric with raised designs
Charmeuse: lightweight, smooth, semi-lustrous satiny fabric.
Chiffon: delicately sheer, a thin, transparent fabric of silk or rayon with a oft finish.
Crepe: silk or rayon fabric made with crepe yarn, with a slight pebble like texture.
Eyelet: open-weave embroidery.
Linen: cloth made of flax. Great for its strength, liked for it's coolness and luster.
Moire:silk tafetta, wave-patterned to glisten like water when illuminated.
Organdy: sheer, transparent crisp silk or rayon fabric. Sometimes printed or embroidered.
Organza: sheer, crisp fabric like chiffon, but with a stiff finish.
Silk Gazar: a four-ply silk or man-made fiber. Rough in texture.
Silk-faced satin: smooth, lustrous silk weave with a glossy face and dull back.
Taffeta: crisp, smooth fabric with a small, crosswise rib.
Tulle: fine, sheer, open-weave net in silk, nylon, or rayon, for skirts, veils.
Voile: fine, soft sheer fabric, more like linen than cotton.