presence
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presence / existence
The fact that something or someone exists or is present in a particular place.
Das Vorhandensein von Wasser ist eine Grundvoraussetzung für Leben.
The presence of water is a basic prerequisite for life.
'Das Vorhandensein' (presence/existence) is the nominalization of the expression 'vorhanden sein' (to exist or to be there). It describes the state of something existing.
Das bloße Vorhandensein einer Waffe macht die Situation gefährlich.
The mere presence of a weapon makes the situation dangerous.
To say what is present, you usually use the preposition 'von' with the dative. In very formal language, the genitive can also be used.
Der Test prüft das Vorhandensein von Antikörpern im Blut.
The test checks for the presence of antibodies in the blood.
This word belongs to technical and written language. It is used mainly in scientific, technical, or legal texts to speak precisely about the existence of something.
Das Vorhandensein von seltenen Metallen wurde bestätigt.
The presence of rare metals was confirmed.
Common verbs combined with 'Vorhandensein' (presence/existence) are 'nachweisen' (to prove/detect), 'prüfen' (to check), 'bestätigen' (to confirm), or 'feststellen' (to determine).
Mit diesem Verfahren kann man das Vorhandensein kleinster Spuren nachweisen.
With this procedure, one can detect the presence of even the smallest traces.
existence
Die Existenz and das Vorhandensein can both establish that something exists. Existenz tends to describe the abstract state, while Vorhandensein emphasizes that something can be found or verified concretely, or is present in a particular place. Existenz suits a general statement, while Vorhandensein is often more appropriate in a verifiable situation.
Bitte prüfen Sie das Vorhandensein aller nötigen Unterlagen.
Please check that all the necessary documents are present.
Die Forschung untersucht die Existenz unbekannter Lebensformen.
The research examines the existence of unknown life forms.
