Pronunciation: [lˈɒst ˈa͡ʊt] (IPA) 
The spelling of the phrase "lost out" can be confusing because of the way it sounds. Phonetically, it is pronounced as /lɒst aʊt/, with the "ou" sound sounding like "ow". This is because the word "out" is pronounced with a diphthong, or a combination of two vowel sounds, in many English accents. It is important to remember to include both the "o" and "u" when writing the word "out", as well as the "l" and "s" in "lost".
"Lost out" is an idiomatic expression that refers to experiencing a missed opportunity or facing a disadvantageous outcome in a specific situation. This phrase is commonly used to depict a scenario where someone fails to achieve a desired result or falls short of success. It implies that the individual or group involved did not fare well in a particular competition, contest, or endeavor, resulting in an inability to claim victory or attain an intended goal.
The term can also convey a sense of regret or disappointment due to having their expectations or aspirations dashed. It suggests that despite efforts or investments made, the person or entity did not achieve the desired outcome, often due to factors beyond their control or a lack of ability.
"Lost out" suggests a comparison between different options or participants, indicating that there were winners or those who benefited while the subject of the phrase did not. It can be applied to various contexts, such as employment opportunities, competitive situations, business transactions, sports events, or personal relationships.
Overall, "lost out" describes the feeling of missing out on something advantageous, success, or opportunities, leaving individuals or groups in a less favorable position than they had hoped for.
The term "lost out" does not have a clear etymology as it is a combination of the words "lost" and "out", both of which have independent origins.
Lost:
The word "lost" comes from the Middle English word "loose" or "los", which originally meant "to destroy" or "to perish". It evolved from the Old English word "losian" with similar meanings. Over time, "lost" came to indicate the state of being unable to find one's way or being deprived of something.
Out:
The word "out" has roots in Old English and Germanic languages. It is related to the German word "aus" and Dutch word "uit", both meaning "out". It denotes the state of being exterior or away from something or someone.
