This is the 9876th most frequent German word.
nägeln
To nail.
Here, 'nägeln' is used in its literal sense, meaning to fix something to a surface using nails.
Ich muss das Bild an die Wand nägeln.
I have to nail the picture to the wall.
In this sentence, 'nägeln' is used metaphorically, indicating asserting or establishing a standpoint.
Er nägelt häufig im Umgang mit Druck seine Worte fest.
He often firmly nails down his words when dealing with pressure.
This example shows 'nägeln' as a practical action specifically referring to construction or fixing.