
das Hochhaus
high-rise
A very tall building with many floors, used mainly for apartments or offices.
In Frankfurt am Main stehen viele beeindruckende Hochhäuser.
There are many impressive high-rises in Frankfurt am Main.
high-rise
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high-rise
A very tall building with many floors, used mainly for apartments or offices.
In Frankfurt am Main stehen viele beeindruckende Hochhäuser.
There are many impressive high-rises in Frankfurt am Main.
The word 'Hochhaus' (high-rise) is a simple compound made from the adjective 'hoch' (high/tall) and the noun 'das Haus' (house). So it literally means a 'tall house'.
Vom Flugzeug aus sahen die Hochhäuser wie kleine Bauklötze aus.
From the airplane, the high-rises looked like small building blocks.
Pay attention to the prepositions: If you are inside the building, you live 'im Hochhaus' (in the high-rise; dative). If you are moving toward it, you go 'ins Hochhaus' (into the high-rise; accusative).
Meine Tante wohnt im zwanzigsten Stock von diesem Hochhaus.
My aunt lives on the twentieth floor of this high-rise.
Common verbs in connection with 'Hochhaus' are 'ein Hochhaus bauen' (to build a high-rise), 'in einem Hochhaus wohnen' (to live in a high-rise), or 'ein Hochhaus entwerfen' (to design a high-rise).
Die Firma plant, ein neues Hochhaus im Stadtzentrum zu bauen.
The company is planning to build a new high-rise in the city center.
tower
Tower and Hochhaus can both refer to a very tall building. Tower often sounds promotional or is part of a building's name, whereas Hochhaus is the neutral term for a tall building with many floors. Choose Hochhaus for a factual description and Tower for a name or a marked designation.

Das neue Hochhaus am Bahnhof hat viele Stockwerke und bietet Platz für Büros.
The new high-rise at the station has many floors and provides space for offices.
Der neue Tower am Bahnhof soll als moderner Name für das hohe Bürogebäude dienen.
The new Tower at the station is intended to serve as a modern name for the high-rise office building.