The phrase "under sun" is a common English expression used to mean "everything" or "in the whole world." The spelling of the word "under" is straightforward, with a phonetic transcription of /ˈʌndər/. However, the spelling of "sun" is more complex. Despite being a one-syllable word, it has two vowel sounds: /ʌ/ and /ʌn/. This is due to a phenomenon called nasalization, where the /n/ sound becomes pronounced in certain contexts. Therefore, the correct IPA transcription for "sun" is /sʌn/.
Under the sun is an idiomatic expression that typically refers to anything and everything in existence or known to mankind. The phrase can be used as a metaphor to emphasize the vastness or comprehensiveness of a particular concept, event, or phenomenon. It originated from the traditional belief that the sun is the ultimate source of light and knowledge, illuminating and enlightening the world.
In a dictionary definition, the term "under the sun" can be described as the entirety of the observable universe, encompassing all natural and human activities, objects, or occurrences. It symbolizes the entirety of creation and serves as a way to suggest that nothing is hidden from view or beyond the reach of human perception.
It can also be extended to convey the idea of life's experiences or the various aspects of existence, encompassing both positive and negative aspects. Consequently, it reflects the diversity and complexity of the world. The expression "under the sun" often signifies the breadth of knowledge or events under consideration, exhibiting a rhetorical or poetic flair. It indicates the all-encompassing nature of a subject and highlights the speaker's intention to provide a comprehensive analysis or discussion. Overall, "under the sun" serves as a figurative expression that underlines the vastness, completeness, or ubiquity of that which is being referred to.