to contain / to dam
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to contain
To limit or stop the spread or negative effects of something. Often used for problems such as diseases, fires, crises, or inflation.
Die Regierung ergreift Maßnahmen, um die Ausbreitung des Virus einzudämmen.
The government is taking measures to contain the spread of the virus.
The word is made up of 'ein' and 'dämmen' (to dam/insulate). 'Dämmen' comes from 'der Damm' (the dam). The literal meaning is to surround something with a dam, which makes the figurative meaning 'to stop something' easy to understand.
Man versucht, die Gerüchteküche mit klaren Informationen einzudämmen.
They are trying to contain the rumor mill with clear information.
'Eindämmen' (to contain/to dam) is a separable verb. In a main clause, the prefix 'ein' goes at the end of the sentence. In subordinate clauses or in the infinitive, the verb stays together.
Die Feuerwehr dämmt den Waldbrand erfolgreich ein.
The fire department is successfully containing the forest fire.
In the figurative meaning, 'eindämmen' (to contain) is often used for negative developments: 'eine Krankheit eindämmen' (to contain a disease), 'die Inflation eindämmen' (to contain inflation), 'Gewalt eindämmen' (to contain violence), or 'die Klimakrise eindämmen' (to contain the climate crisis).
Die Zentralbank versucht, die hohe Inflation einzudämmen.
The central bank is trying to contain high inflation.
The context makes the meaning clear. If people are talking about a river or water, the literal meaning is intended. If people are talking about problems, crises, or diseases, the figurative meaning is intended.
Man muss den Fluss eindämmen, um die Stadt zu schützen.
The river has to be dammed to protect the city.
to prevent
'verhindern' and 'eindämmen' can both be used when you are working against a problem. The difference lies in the goal. 'verhindern' means that something should not happen at all. 'eindämmen' means that something is already there or is spreading, and you are trying to limit it. That is why you say, for example, that you 'eindämmen' a fire, a disease, or a crisis. Learners may confuse the words because both have to do with control. A practical guide: before the problem occurs, you can 'verhindern' it; if it is already there, you can 'eindämmen' it.
Die Feuerwehr konnte das Feuer nach zwei Stunden eindämmen.
The fire department was able to contain the fire after two hours.
Die neue Regel soll verhindern, dass sich noch mehr Menschen anstecken.
The new rule is intended to prevent even more people from becoming infected.