Float: Technique used for applying shading or highlighting. Also known as "sideloading." A flat or angular brush is usually used with one side loaded with paint and the other side loaded with water or extender.
Splatter: A technique that involves flicking the paint off the hairs of a bristle brush or toothbrush with your nail to achieve a "speckled" or "fly-specked" appearance.
Shade: A color mixed with black.