to develop / infer
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to develop
To prepare a plot of land or an area for construction or use by connecting it to roads, water, electricity, and sewage networks.
Die Gemeinde will ein neues Baugebiet erschließen.
The municipality wants to develop a new building area.
The prefix 'er-' is inseparable, so it always remains attached to the verb. It often means that something is successfully opened or made accessible, almost as the opposite of 'schließen' (to close) or 'verschließen' (to lock up, to close off).
Ich habe mir die Bedeutung des Wortes aus dem Kontext erschlossen.
I inferred the meaning of the word from the context.
When something becomes understandable, you use the reflexive form 'sich erschließen' (to become clear). The person who understands something is in the dative. The pattern is: something (subject) + erschließt sich + mir/dir/ihm (dative).
Der Witz war kompliziert; er erschloss sich mir erst später.
The joke was complicated; it only became clear to me later.
When you logically infer something from clues, you often use the preposition 'aus' (from). The pattern is: etwas aus etwas (Dativ) erschließen (to infer something from something).
Aus den Spuren im Schnee konnten die Wanderer den Weg erschließen.
From the tracks in the snow, the hikers were able to infer the route.
In the context of urban planning and construction, 'erschließen' (to develop) means to connect an area to infrastructure such as roads, water, and electricity. Typical objects are 'ein Grundstück' (a plot of land) or 'ein Baugebiet' (a building area).
Bevor man ein Haus bauen kann, muss man das Grundstück erschließen.
Before you can build a house, you have to develop the plot of land.
In business, 'erschließen' (to open up) means to make new opportunities usable. Common combinations are 'einen neuen Markt erschließen' (to open up a new market), 'neue Zielgruppen erschließen' (to reach new target groups), or 'neue Geldquellen erschließen' (to tap into new sources of funding).
Das Technologieunternehmen will mit seinem neuen Produkt den europäischen Markt erschließen.
The technology company wants to open up the European market with its new product.
to understand
'verstehen' and 'erschließen' can both mean that the meaning of something becomes clear to you. 'verstehen' is the more general word: you can understand an explanation, a sentence, or a problem. 'erschließen' is used more when you do not get the meaning directly, but find it from clues, from context, or by thinking. 'sich erschließen' often fits with complex texts, rules, or connections that only become clear gradually. In practical terms: if something is clear, you understand it with 'verstehen'; if you work it out from clues, you use 'sich erschließen'.
Aus dem Zusammenhang erschließt sie die Bedeutung des unbekannten Wortes.
She infers the meaning of the unknown word from the context.
Nach der zweiten Erklärung verstehe ich die Aufgabe endlich.
After the second explanation, I finally understand the task.