Englishfor English speakers
administration
Noun
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The administration are the people who run and organise an organisation such as a business or government.
In short, the administration does not actually know why it wants a space station.
The Bush administration has one of the worst records of any American government.
headquarters
Noun
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A headquarters is the main building in control of whatever is going on in an organization.
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A headquarters is a military command center that controls and commands troops.