ˈfəʊ.kəs ˈfoʊ.kəs ˈhaɪtən ˈʃɑɹpɨn put (an image) into focus Please focus the image: we cannot enjoy the movie become sharp or sharper The debate sharpened make crisp or more crisp and precise We had to sharpen our arguments make (one's senses) more acute This drug will sharpen your vision give a point to The candles are tapered raise the pitch of (musical notes) make sharp or sharper sharpen the knives make (images or sounds) sharp or sharper