diagram

noun

1. a figure, usually consisting of a line drawing, made to accompany and illustrate a geometrical theorem, mathematical demonstration, etc.
2. a drawing or plan that outlines and explains the parts, operation, etc., of something: a diagram of an engine.
3. a chart, plan, or scheme.

verb (used with object), di·a·gramed or di·a·grammed, di·a·gram·ing or di·a·gram·ming.

4. to represent by a diagram; make a diagram of.

noun

1. a sketch, outline, or plan demonstrating the form or workings of something
2. maths a pictorial representation of a quantity or of a relationshipa Venn diagram

verb -grams, -gramming or -grammed or US -grams, -graming or -gramed

3. to show in or as if in a diagram

n.

1610s, from French diagramme, from Latin diagramma, from Greek diagramma “geometric figure, that which is marked out by lines,” from diagraphein “mark out by lines, delineate,” from dia- “across, out” (see dia-) + graphein “write, mark, draw” (see -graphy). The verb is 1840, from the noun.