• The movement of persons from one country or locality to another (synset 101125416)
  • A group of people migrating together (especially in some given time period) (synset 107983035)
  • (chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule (synset 107327429)
  • The periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding (synset 107327216)

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