
töten
to kill
To take the life of a living being (human or animal); to cause it to die.
Das Gift der Schlange kann einen Menschen innerhalb von Stunden töten.
The snake's venom can kill a person within hours.
to kill
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to kill
To take the life of a living being (human or animal); to cause it to die.
Das Gift der Schlange kann einen Menschen innerhalb von Stunden töten.
The snake's venom can kill a person within hours.

to kill
To destroy something abstract, such as a mood, a hope, or love.
Seine unbedachte Äußerung hat die romantische Stimmung des Abends getötet.
His careless remark killed the romantic mood of the evening.

to kill time
To occupy yourself with something unimportant in order to pass a waiting period. The expression is 'die Zeit totschlagen' (to kill time), but 'töten' is sometimes used synonymously.
Um die Zeit bis zum Abflug zu töten, las er eine Zeitschrift.
To kill time until the departure, he read a magazine.
The verb 'töten' (to kill) is directly related to the noun 'der Tod' (death) and the adjective 'tot' (dead). All three words belong to the same root and have a clear meaning relationship.
Der Sturz vom Baum war fast sein Tod.
The fall from the tree was almost his death.
In a figurative sense, 'töten' (to kill) can also mean to destroy something abstract. Common objects are then feelings or atmospheres, such as 'die Stimmung' (the mood), 'die Hoffnung' (the hope), or 'die Langeweile' (the boredom).
Sein lauter Anruf hat die ganze Konzentration im Raum getötet.
His loud phone call killed all the concentration in the room.
The fixed idiom is 'die Zeit totschlagen' (to kill time). It means to occupy yourself with something unimportant in order to pass a waiting period. Sometimes 'töten' (to kill) is also used in this sense.
Ich habe am Bahnhof zwei Stunden die Zeit totgeschlagen.
I killed two hours of time at the train station.
to destroy
Zerstören and töten can both express bringing an end to a hope, mood, or love. Zerstören is the more neutral standard choice. Töten is a much stronger metaphor that presents the feeling figuratively as something living that loses its life.

Die endgültige Absage tötete ihre letzte Hoffnung auf eine Zusage.
The final rejection killed her last hope of receiving an acceptance.
Die erneute Absage zerstörte ihre Hoffnung auf eine Zusage.
The renewed rejection destroyed her hope of receiving an acceptance.