erwürgen
to strangle
To kill someone by squeezing their throat or neck and thus cutting off their air supply.
Der Täter hat sein Opfer im Schlaf erwürgt.
The perpetrator strangled his victim in their sleep.

to strangle
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to strangle
To kill someone by squeezing their throat or neck and thus cutting off their air supply.
Der Täter hat sein Opfer im Schlaf erwürgt.
The perpetrator strangled his victim in their sleep.

'Erwürgen' (to strangle) is an inseparable verb. The prefix 'er-' here, as with many other verbs, indicates a result involving death (compare: 'erstechen' (to stab to death), 'erschießen' (to shoot dead), 'ertränken' (to drown)). The base verb is 'würgen' (to choke).
Der Täter versuchte, den Zeugen zu erwürgen.
The perpetrator tried to strangle the witness.
The verb is transitive and always needs an accusative object. The structure is therefore: subject + erwürgen + object (accusative).
Die strenge Bürokratie erwürgt viele gute Ideen.
Strict bureaucracy stifles many good ideas.
You can recognize the figurative meaning from the object. If it is a person or an animal, the literal meaning is intended. But if the object is something abstract like 'Diskussion' (discussion), 'Kreativität' (creativity), or 'Initiative' (initiative), the figurative meaning is intended.
Seine negativen Kommentare haben die kreative Atmosphäre im Team erwürgt.
His negative comments stifled the creative atmosphere in the team.
In the figurative meaning, 'erwürgen' (to stifle) is often combined with abstract nouns. Typical phrases are: 'eine Debatte erwürgen' (to stifle a debate), 'eine Initiative erwürgen' (to stifle an initiative), or 'jede Kreativität erwürgen' (to stifle all creativity).
Der Chef hat mit seiner Entscheidung die aufkommende Diskussion sofort erwürgt.
With his decision, the boss immediately stifled the emerging discussion.
to suppress
'unterdrücken' and 'erwürgen' can both mean that something is stopped by force and cannot develop or continue. 'unterdrücken' is the more general word: you can suppress or oppress people, feelings, or reactions. 'erwürgen' literally means to kill someone by squeezing their throat. Figuratively, it is used when a discussion, idea, or initiative is ended very harshly and early. The words can be confused because both express a strong kind of stopping. However, 'erwürgen' is much more drastic and only fits very strong or figurative situations; 'unterdrücken' is more neutral and can be used more broadly.

Im Kurs erwürgte die Lehrerin die Diskussion mit einem strengen Verbot.
In the course, the teacher stifled the discussion with a strict ban.
Zu Hause unterdrückte er seinen Ärger, um den Streit nicht größer zu machen.
At home, he suppressed his anger so the argument would not get worse.