systeme
Systeme is the plural form of the noun system in German, where it denotes multiple interrelated components designed to function together as a whole. In German technical writing, die Systeme is a common phrase. In international context, the term may appear as a loanword or in titles, but the underlying concept is widely used across disciplines. In other languages, spellings and accents vary; for example, French uses système (with an acute accent), and the unaccented form Systeme may appear in multilingual material or as a proper name.
A system is an organized arrangement of parts that interact to produce a coherent function or behavior
Systems theory or systems thinking studies how parts interact across scales and how global properties emerge
Because Systeme functions as a plural form in German and appears in multilingual contexts, it is encountered