Pronunciation: [ɪn mˈe͡ɪn] (IPA) 
The spelling of the word "in main" can be explained using IPA phonetic transcription. The first syllable, "in", is pronounced as /ɪn/, with the short "i" sound followed by the nasal "n" sound. The second syllable, "main", is spelled as it sounds, using the letters "m", "a", "i", and "n". It is pronounced as /meɪn/, with the long "a" sound and a slight emphasis on the "n" at the end. Together, "in main" is pronounced as /ɪn meɪn/.
"In main" is an idiomatic phrase commonly used in informal speech, particularly in British English. It is used to mean "mostly" or "largely" and is often used to qualify or describe a general trend or characteristic of something or someone. It implies that the majority or the most significant part of something conforms to the described quality or condition.
The phrase "in main" is derived from the noun "main," which means "chief" or "principal." This usage of "main" as a noun originated from Old English and became less common over time, but remnants can still be found in certain idiomatic expressions like this one.
For example, one could say, "The event was successful in main," indicating that the event was, for the most part, successful, but perhaps with some minor issues or exceptions. Similarly, one might describe a book as being "entertaining in main," suggesting that while there may be certain sections that are less engaging, overall, the book offers an enjoyable reading experience.
It is important to note that "in main" is a less formal way of expressing the same idea as the more commonly used phrase "in general" or "for the most part." This phrase tends to be used in informal settings rather than in formal writing or academic contexts.
