die Morgendämmerung
dawn
The time in the early morning, shortly before the sun rises, when it slowly gets light.
Die Vögel begannen in der Morgendämmerung zu singen.
The birds began to sing at dawn.

dawn
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dawn
The time in the early morning, shortly before the sun rises, when it slowly gets light.
Die Vögel begannen in der Morgendämmerung zu singen.
The birds began to sing at dawn.

The word is a compound of 'der Morgen' (the morning) and 'die Dämmerung' (twilight; the time between night and day). So it describes the twilight in the morning.
In der frühen Morgendämmerung ist die Stadt noch ganz still.
In the early dawn, the city is still completely quiet.
To describe when something happens, you usually use 'in der Morgendämmerung' (at dawn) or the shorter form 'bei Morgendämmerung' (at dawn).
Wir müssen noch in der Morgendämmerung aufbrechen.
We have to set off while it is still dawn.
You can recognize the figurative meaning by the fact that 'Morgendämmerung' (dawn) is combined with abstract nouns such as 'ein Zeitalter' (an age), 'eine Epoche' (an era), or 'eine neue Zeit' (a new time).
Die Entwicklung der künstlichen Intelligenz gilt als die Morgendämmerung einer technologischen Revolution.
The development of artificial intelligence is regarded as the dawn of a technological revolution.
The figurative meaning of 'Morgendämmerung' (dawn) is used mainly in written language, in literary texts, or in journalism. It sounds poetic and elevated.
Der Historiker sprach von der Morgendämmerung der Demokratie in Europa.
The historian spoke of the dawn of democracy in Europe.
morning
'der Morgen' and 'die Morgendämmerung' both belong to the early part of the day. But 'der Morgen' is broader: it can mean the whole period from daybreak until noon. 'die Morgendämmerung' is much more specific and means the short moment when it slowly gets light, shortly before sunrise. The words can be confused because dawn is part of the morning. Figuratively, both can also stand for a new beginning, but 'Morgendämmerung' sounds stronger and more solemn in that use.

In der Morgendämmerung ist meine Mutter mit den Kindern zum See gegangen.
At dawn, my mother went to the lake with the children.
Am Morgen vor dem Termin gehst du noch einmal alle Unterlagen durch.
On the morning before the appointment, you go through all the documents once more.