Usage Note
Tau is the morning moisture that condenses on grass and leaves; it is uncountable, so the plural Taue is rare and technical. Compounds like Tautropfen (dewdrop) and Morgentau (morning dew) are far more common in everyday speech.
Examples
"Am frühen Morgen lag Tau auf den Wiesen."
Natural Translation
In the early morning dew lay on the meadows.
Literal Translation
At-the early morning lay dew on the meadows.

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