Pronunciation: [nˌɒt sˌə͡ʊ lˈɒŋ] (IPA) 
The words "not so long" are spelled with three separate sounds. The first sound is the "n" sound, written as /n/. The second sound is the "ah" sound, written as /ɑ/, which is followed by the "t" sound, written as /t/. The third sound is the "s" sound, written as /s/, followed by the "oh" sound, written as /oʊ/, and then the "l" sound, written as /l/. This combination of sounds results in the word "not so long."
Not so long is an idiom used to convey the idea of a span of time that is relatively brief or shorter than expected. It indicates a period that, while not extensive, is not insignificant either. The expression implies that the specific duration being referred to is not exceptionally lengthy, but it also suggests that it is not trivial or insignificant.
The term "not so long" typically implies a temporal context and is often used in conversations or discussions when referring to a specific timeframe. It can be employed when recounting an event or incident that occurred within a reasonably short timeframe, emphasizing that it was recent but not immediate. For example, one might say, "I visited that museum not so long ago," implying that the visit occurred a short while back but is still relatively fresh in memory.
In summary, "not so long" is an idiomatic expression that denotes a period of time that is relatively brief, but not negligible. While lacking a precise measurement, it suggests a noteworthy duration, especially in comparison to other, potentially lengthier periods. The context in which the term is used ultimately determines the exact meaning and scale of the timeframe being referred to.
