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upper▼adjectiveat a higher level, rank or position
Upper Egypt▼nounSouthern Egypt
Upper Silesia▼nounregion
supremum▼nounelement of a set greater than or equal to all members of a given subset
up quark▼nounup quark
top-down▼adjectivehierarchical system that progresses from a single, large basic unit to multiple, smaller subunits
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