Learn how to say Coupling correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word coupling:
a mechanical device that connects two things
a device for connecting railway cars or trucks together
the part of the body of a horse, dog, or other quadruped that lies between the forequarters and the hindquarters
(electronics) the act or process of linking two or more circuits so that power can be transferred between them usually by mutual induction, as in a transformer, or by means of a capacitor or inductor common to both circuits See also direct coupling
(physics) an interaction between different properties of a system, such as a group of atoms or nuclei, or between two or more systems
(genetics) the occurrence of two specified nonallelic genes from the same parent on the same chromosome