This is the 3991st most frequent German word.
vertretung
Representation; substitution; replacement.
Here, 'Vertretung' is used to refer to a person substituting temporarily for someone else, in this case, a teacher.
Die Vertretung des Lehrers hat den Unterricht übernommen.
The substitute for the teacher took over the lesson.
In this example, 'Vertretung' refers to the act of representing a company or entity in a formal setting, such as a fair or exhibition.
Die Vertretung einer Firma auf der Messe war sehr erfolgreich.
The representation of a company at the fair was very successful.
Here, 'Vertretung' signifies taking over someone's role or responsibilities temporarily.