Force to go away; used both with concrete and metaphoric meanings(verb)
WordNet. Princeton University. 2010.
Use "chase away" in a sentence
"Agno was a shade less controlled, for he could not quite chase away the eager light in his eyes."
"It was an anxious moment when we entered the open place; any ill-looks in either party would chase away trust front the other."
"It is twelve miles distant from the Maçon, and a long and weary twelve miles it was to me, Mollie was so lame that traveling was painful to herself and her rider, and I could not chase away by a short galop, as is my wont, the painful thoughts that lengthened the miles to me."