noun
(attributive, also figurative) A person seeking refuge (as for shelter or protection), especially in a foreign country, out of fear or prospect of political, religious persecution, war, natural disaster, etc.
(derogatory, by extension) A person who is fleeing from justice, punishment deemed righteous, etc.; a runaway, a fugitive.
verb
(transitive, US, historical) To convey (slaves) away from the advance of the federal forces.