This is the 3837th most frequent German word.
signa
The German word "Signa" refers to "signals" or "symbols."
In this sentence, 'signa' refers to a mark or symbol used to identify the source of the letter.
Das Signa auf dem Brief zeigte die Herkunft.
The signa on the letter indicated the origin.
Here, 'signa' represents historical symbols or signs found in a location.
Wir interpretierten die alten Signa an den Wänden.
We interpreted the old signa on the walls.
In this context, 'signa' indicates a representation or symbolic outline of a constellation.