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: to confer a diploma upon
: to treat or manage with diplomacy : aid in the manner of a diplomatist
: to act like a diplomat or with adroitness and tact : practice diplomacy
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in sense 1 (transitive), from Latin diplomat-, diploma + English -ize; in other senses, from diplomatic entry 1, after such pairs as English dramatic: dramatize
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occurring twice a year or every two years
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