Pronunciation: [ˈɛnd ɒv ɹˈe͡ɪnbə͡ʊ] (IPA) 
The phrase "end of rainbow" is often misspelled as "end of the rainbow," with an extra "the." The correct spelling is without the extra article, and is pronounced /ɛnd əv ˈreɪnboʊ/ in IPA phonetic transcription. The "e" in "end" is pronounced as in "bed," and the "o" in "of" is pronounced as in "hot." The stress falls on the first syllable of "rainbow," and the "ow" is pronounced as in "cow."
The term "end of the rainbow" refers to a mythical or fictional location that is believed to be the termination point of a rainbow. According to folklore, a rainbow is a multicolored arc that appears in the sky when sunlight is refracted by water droplets in the air, creating a spectrum of colors. It is said that at the end of this luminous arc lies a hidden pot of gold or a coveted treasure.
The concept of the end of the rainbow is rooted in the imagination and symbolism, representing an elusive goal or an unreachable dream. It is often used metaphorically to describe an elusive or unattainable objective that is sought after but always out of reach.
The notion of the end of the rainbow has captured the human imagination for centuries, featuring in various mythologies, fairy tales, and literature. It has become a symbol of hope, luck, and the pursuit of dreams. Additionally, the phrase is frequently employed in idiomatic expressions and colloquialisms to convey the idea of searching for something intangible or being caught in an endless quest.
While the end of the rainbow is a captivating idea, scientifically, it cannot be physically reached or located since a rainbow is an optical phenomenon dependent on the observer's position and the atmospheric conditions. The myth surrounding the end of the rainbow, however, persists as a testament to the enduring human longing for fantastic treasures and unattainable ambitions.
