composition
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composition
The way something consists of different parts, substances, or elements; the composition.
Die genaue Zusammensetzung der Legierung wird vom Hersteller geheim gehalten.
The exact composition of the alloy is kept secret by the manufacturer.
The word is derived from the separable verb 'zusammensetzen' (to put together/compose). It describes the result of 'setting' (setzen) different parts 'together' (zusammen) in their place.
Die Kinder lernen, wie man einfache Sätze zusammensetzt.
The children are learning how to put together simple sentences.
The ending '-ung' shows that this word is derived from the verb 'zusammensetzen' (to put together/compose). Nouns with this ending are always feminine ('die Zusammensetzung').
Die Zusammensetzung des neuen Medikaments ist geheim.
The composition of the new medication is secret.
In this meaning, it is about the components of materials. Typical contexts are chemistry, food, or medications. The preposition 'von' (of) or 'aus' (from/made of) is often used to name the components.
Auf der Verpackung steht die genaue Zusammensetzung des Produkts.
The exact composition of the product is written on the packaging.
When it is about groups of people, the word describes the members. Typical examples are the composition of 'einer Mannschaft' (a team), 'einer Regierung' (a government), or 'eines Komitees' (a committee).
Die neue Zusammensetzung des Teams verspricht mehr Erfolg.
The new composition of the team promises more success.
structure / assembly
'der Aufbau' and 'die Zusammensetzung' both describe how something consists of parts or is organized. 'Aufbau' refers more to the structure: How are the parts arranged, and how is the whole thing organized? 'Zusammensetzung' focuses more on which parts, substances, or people are included at all. With a text, you are more likely to ask about the 'Aufbau'. With a product, a material, or a team, you are more likely to ask about the 'Zusammensetzung'. The words can be confused because both look at the parts of a whole. The difference is: 'Aufbau' asks about the order or structure, while 'Zusammensetzung' asks about the components.
Die Zusammensetzung des Teams hat sich nach dem Projekt geändert.
The composition of the team changed after the project.
Beim Vortrag erklärt Mehmet zuerst den Aufbau seiner Präsentation.
In the presentation, Mehmet first explains the structure of his presentation.