die Dynastie
dynasty
A sequence of rulers who come from the same family or lineage.
Die Ming-Dynastie herrschte mehrere Jahrhunderte über China.
The Ming dynasty ruled China for several centuries.

dynasty
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dynasty
A sequence of rulers who come from the same family or lineage.
Die Ming-Dynastie herrschte mehrere Jahrhunderte über China.
The Ming dynasty ruled China for several centuries.

You can recognize the meaning from the context. If it is about history, kings, or emperors, it refers to a ruling family. If people are talking about business, politics, or sports in the present day, it refers to an influential family.
Die Habsburger waren eine der mächtigsten Dynastien in Europa.
The Habsburgs were one of the most powerful dynasties in Europe.
In a historical context, 'Dynastie' (dynasty) is often used with verbs such as 'herrschen' (to rule) or 'regieren' (to govern/rule), and in connection with countries or eras.
Diese Dynastie herrschte über ein riesiges Reich.
This dynasty ruled over a huge empire.
In the figurative meaning, 'Dynastie' (dynasty) is often used as the second part of compounds to clarify the sphere of influence, e.g. 'Wirtschaftsdynastie' (business dynasty), 'Unternehmerdynastie' (entrepreneurial dynasty), or 'Politikerdynastie' (political dynasty).
Er ist der Erbe einer bekannten Hotel-Dynastie.
He is the heir to a well-known hotel dynasty.
family
'die Familie' and 'die Dynastie' both have to do with kinship. 'Familie' is the normal word for your own relatives or for parents and children. 'Dynastie' is used when several people from the same family have power or great influence over a long period, for example as rulers, in politics, or in a company. Learners may confuse the words because a dynasty is always connected to a family. But not every family is a dynasty. 'Familie' fits everyday language, while 'Dynastie' is more appropriate in history, politics, or when talking about very influential families.

Diese Dynastie regierte das Land über viele Generationen.
This dynasty ruled the country for many generations.
Am Wochenende besucht er seine Familie und erzählt ihr von dem Gespräch mit der Ärztin.
At the weekend, he visits his family and tells them about the conversation with the doctor.