Sentence:  If , in preparing that shot for the inevitable showing to your friends , you interrupt the sequence to paste in a few frames of the child 's grandmother watching this event , you have begun to be an artist in film ; you are <WSD>employing</WSD> the basic technique of film ; you are cutting . 
Meaning of the word marked with <WSD> tags:  put into service; make work or employ for a particular purpose or for its inherent or natural purpose