To give an indication of something in advance:
augur, bode, forecast, forerun, foreshadow, foretell, foretoken, portend, prefigure, presage, prognosticate. See foresight, showTo draw up a preliminary plan or version of:
block in (or out), draft, outline, rough in (or out), sketch. See plannedTo make dark or darker:
darken, shade, shadow. See light
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