to hammer
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to hammer
To hit something repeatedly and forcefully with a hammer, for example to drive a nail into the wall.
Der Zimmermann hämmert die Bretter für das Dach fest.
The carpenter is hammering the boards for the roof into place.
The verb 'hämmern' (to hammer) is derived directly from the noun 'der Hammer' (hammer). So the basic meaning is to do something as if you were using a hammer.
Ich brauche einen Hammer, um den Nagel in die Wand zu hämmern.
I need a hammer to hammer the nail into the wall.
Different prepositions are used depending on the context. You hammer a nail 'in' die Wand (into the wall), you hammer 'auf' einen Gegenstand (on an object), or the heart pounds 'gegen' die Rippen (against the ribs).
Der Schmied hämmert auf das heiße Eisen.
The blacksmith is hammering on the hot iron.
In the figurative meaning, 'hämmern' (to pound) describes a strong, rhythmic sound or feeling. It is often used without an object, for example when referring to the heart, loud music, or heavy rain.
Ich war so nervös, dass mein Herz wie wild hämmerte.
I was so nervous that my heart was pounding like crazy.
The use of 'hämmern' (to hammer) for loud typing on a keyboard is colloquial. It emphasizes the energy or anger involved in writing.
Er saß am Schreibtisch und hämmerte einen langen Bericht in den Computer.
He sat at the desk and hammered a long report into the computer.
to hit / beat
'schlagen' and 'hämmern' can both describe a forceful, repeated movement or a strong pounding. 'schlagen' is more general: you can hit something, and the heart or a clock can also 'schlagen'. 'hämmern' is more precise when someone is working with a hammer, or when something sounds very loud, strong, and rhythmic. For the heart, 'hämmern' means that it is pounding especially strongly. The words can be confused because both are connected with blows or strikes. 'schlagen' is more neutral; 'hämmern' emphasizes force, repetition, and loudness.
In der Werkstatt hämmert Mehmet einen Nagel in das Brett.
In the workshop, Mehmet is hammering a nail into the board.
Die Uhr im Flur schlägt jede volle Stunde.
The clock in the hallway strikes every hour.