Sentence:  Hoag pushed open the door : at the far end of the long dark room Muller was faintly <WSD>silhouetted</WSD> against the window , the rifle still raised ; he stood with his feet apart on a kitchen table he had dragged to the sill . 
Meaning of the word marked with <WSD> tags:  project on a background, such as a screen, like a silhouette