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out-

  1. situated at or coming from a point away, outside, external: outbuilding, outpatient
  2. going away or forth, outward: outbound
  3. better, greater, or more than: used to form verbs from verbs, adjectives, or certain nouns naming persons, actors, or agents [outdo, outsell, outsmart, outgeneral, out-Herod]: a frequent usage in such self-explanatory terms as the following:

See out- in American Heritage Dictionary 4

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