koppeln

Koppeln is a German verb meaning to couple, connect, or link two objects, systems, or ideas. It is used in literal senses, such as coupling two machines, linking railway cars, or attaching gears, as well as in figurative senses, such as coupling variables in a model or coupling processes in a workflow. The term is also used to describe pairing or joining things for a common purpose, for example connecting devices or systems via adapters or interfaces.

In technical and scientific contexts, koppeln refers to creating a functional connection between components or signals. Examples include electrical or signal coupling between circuits, mechanical coupling of components in machinery, and the coupling of models or data streams in software and analysis. In genetics and biology, Kopplung (noun) is used for linkage concepts describing how certain traits or genes are inherited together, a usage more common in historical or technical texts than in everyday speech.

The word derives from the noun Koppel, meaning a link or connecting piece, and the verb is regular in conjugation. The present tense forms include ich kopple, du koppelst, er koppelt, wir koppeln, ihr koppe lt, sie koppeln; the past participle is gekoppelt. Related nouns include Kopplung (the act or result of coupling) and various domain-specific terms such as Koppler (coupler).

See also Kopplung, Koppler, and Kupplung, which describe related concepts of connection and linkage in technical contexts.