to sever
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to sever
To completely cut through something that has an elongated shape, such as a rope, cable, or ribbon, so that it is divided into two parts.
Mit einer Zange durchtrennte er das rote Kabel.
He severed the red cable with a pair of pliers.
'Durchtrennen' is an inseparable verb. The prefix 'durch-' is never separated from the stem 'trennen' (to separate), not even in main clauses or in the participle.
Er durchtrennte das Seil mit einem Messer.
He severed the rope with a knife.
The verb consists of the prefix 'durch-' and the verb 'trennen' (to separate). Literally, it means to separate something by cutting all the way through it. This idea of a final cut also applies to the figurative meaning.
Die Schere war nicht scharf genug, um den Draht zu durchtrennen.
The scissors were not sharp enough to sever the wire.
You can easily recognize the meaning from the object. If it is a physical object like 'Kabel' (cable) or 'Schlauch' (hose), the literal meaning is intended. With abstract nouns like 'Bande' (ties) or 'Verbindung' (connection), it is about figuratively ending a relationship.
Der Gärtner hat aus Versehen den Wasserschlauch durchtrennt.
The gardener accidentally severed the water hose.
to connect / to bandage
'verbinden' and 'durchtrennen' are clear opposites. 'verbinden' means that two things, or even thoughts, are brought together. 'durchtrennen' means that an existing connection is completely cut, for example a rope or a cable. In a figurative sense, you can also 'durchtrennen' a relationship or bond. When something is joined together, 'verbinden' fits. When something is permanently severed, 'durchtrennen' fits.
Bei den Bauarbeiten wurde ein Stromkabel durchtrennt.
During the construction work, a power cable was severed.
Der Techniker verbindet das neue Kabel mit dem Router.
The technician connects the new cable to the router.