Shadow
Part of speech: verb
Definition: To block light or radio transmission. To secretly or discretely track or follow another, to keep under surveillance. To make an identifier, usually a variable, inaccessible by declaring another of the same name within the scope of the first.
Part of speech: noun
Definition: A dark image projected onto a surface where light is blocked by the shade of an object. Relative darkness, especially as caused by the interruption of light; gloom, obscurity. That which looms as though a shadow. Merely a hint of substance. One who secretly or furtively follows another. A type of lettering form of word processors that makes a cubic effect.
Silhouette
Part of speech: noun
Definition: A representation of the outlines of an object filled in with a black color; a profile portrait in black, such as a shadow appears to be.
Part of speech: verb
Definition: To represent by a silhouette; to project upon a background, so as to be like a silhouette.