I read from direction cosine to directorate.

A direction finder is used to find where something is located using triangulation.

https://en.wikipedia.org/wiki/Direction_finding

The directoire style only lasted for 4 years (almost exactly) and ended when Napoleon Bonaparte overthrew the government. 

https://en.wikipedia.org/wiki/Directoire_style

https://en.wikipedia.org/wiki/French_Directory

The word of the episode is "director".

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