Pronunciation: [ba͡ɪ flˈuːk] (IPA) 
By fluke, spelled /baɪ fluːk/, is an idiom used to describe an event that occurs by chance or accident. The word fluke comes from the Old Norse word flóki, meaning flatfish, and has evolved over time to refer to a lucky occurrence. The spelling of the word is phonetically straightforward, with the "fl" combination pronounced as one consonant sound, /fl/, followed by the long vowel sound of "u" and the consonant "k" sound, /uːk/.
By fluke is an idiomatic expression that refers to an event or outcome that occurs purely by chance or luck, without any deliberate or expected intention or planning. It is often used to describe an unexpected or fortuitous occurrence that is seen as fortunate or favorable.
The phrase by fluke suggests that the outcome or event is the result of a random or unanticipated circumstance. It implies that the occurrence is not a direct consequence of anyone's actions or efforts, but rather a serendipitous happening. By fluke implies that the event or outcome could not have been predicted or controlled, and may even be considered unlikely or improbable.
The phrase is often used to convey a sense of surprise or astonishment, highlighting the unexpected nature of the occurrence. It can also imply a certain degree of skepticism or disbelief towards the event, as it suggests that it happened purely by chance rather than through any intentional cause.
Overall, by fluke describes a situation where something happens unexpectedly and unintentionally, indicating that luck or happenstance played a significant role. It portrays an element of randomness and unpredictability, emphasizing the absence of intention or planning.
The word "fluke" originated in the late 17th century and is derived from the Old Norse word "fluga", which means "flying object" or "wing". The word "fluke" initially referred to the lobes on the tails of whales. Over time, the meaning expanded to include the idea of chance or luck, leading to the phrase "by fluke". This expression is used to describe something happening purely by coincidence or accident, emphasizing the element of chance involved.
