Pronunciation: [ʌnkˈʌpə͡l] (IPA) 
The word "uncouple" is spelled with a silent "-e" at the end. It is pronounced as /ʌnˈkʌpəl/. The first syllable is stressed with a short "u" sound, while the second syllable has an unstressed "uh" sound. The "c" in the middle is pronounced as a hard "k" sound, while the "ou" diphthong is pronounced as the short "ʌ" sound followed by the "uh" sound. The word means to detach or separate, such as uncoupling train cars.
The verb "uncouple" refers to the act of separating or disconnecting two or more things that were previously linked or joined together. It is commonly used to describe the process of disengaging a mechanism to separate parts, particularly in a train or locomotive. When referring to trains, it specifically means to detach or disconnect the couplings that hold the cars together, allowing them to move independently. This action is typically accomplished by releasing a lever or mechanism that holds the cars in place, allowing them to be maneuvered separately.
Beyond trains, the term "uncouple" can also be used more broadly to describe the disconnection or separation of any linked or joined entities. For example, it can be used to characterize the act of dissolving a partnership, ending a relationship, or breaking apart a tied or bound object. In figurative senses, it can describe the detachment of ideas or concepts that were previously tied together. In this context, "uncouple" expresses the idea of separating components or aspects that were previously considered united or inseparable.
In summary, "uncouple" signifies the act of severing or detaching two or more elements that were previously connected or linked together, both in a literal and figurative sense. It conveys the idea of disengaging, separating, or releasing something that was previously joined or associated.
To loose; to disjoin.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word uncouple can be traced back to Middle English, where it first appeared as uncouplen. Its origin lies in the combination of the Old French prefix un- meaning not or reverse and the Middle English verb couplen meaning to couple or to join together. The Old French prefix un- comes from the Latin word in- which also conveys negation or reversal. Over time, uncouple evolved to its present form and retained its original meaning of to detach, separate, or disconnect.
