the movement of persons from one country or locality to another | (plural) any group of human beings (men or women or children) collectively |
the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding | the body of citizens of a state or country |
(chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule | members of a family line |
a group of people migrating together (especially in some given time period) | the common people generally |