Grid: In graphic design, a grid is a structure (usually two-dimensional) made up of a series of intersecting straight (vertical, horizontal, and angular) or curved guide lines.
Anatomy of a layout : How a page is laid out, of course!
Visual hierarchy: Refers to the arrangement or presentation of elements in a way that implies importance.
White Space: Referred to as negative space. It is the portion of a page left unmarked: margins, gutters, and space between columns
Contrast: Distinguishing by comparing/creating differences. Some ways of creating contrast among elements in the design include using contrasting colors, sizes, shapes, locations, or relationships
Color: COLOR IS COLOR!
Color Palette: the set of colors on such a board or surface.
Gradient: Specifies a range of position-dependent colors, usually used to fill a region.
Color Rendering: Ability of a light source to show true colors as seen outdoors in sunlight.