Pronunciation: [ɪn skˈa͡ɪ] (IPA) 
The spelling of the phrase "in sky" may seem straightforward, but its pronunciation can be a bit tricky. The first sound is the short "ih" vowel followed by the consonant "n". The second word, "sky", has two sounds: first the "s" consonant sound followed by a diphthong (two vowel sounds) made up of "ai" and "ee". Put together, the phonetic transcription of "in sky" is /ɪn skaɪ/, with emphasis on the second syllable of "sky".
"in sky" is an idiomatic phrase used to describe something that is situated or occurring in the sky, predominantly referring to celestial objects or phenomena. It denotes that a particular entity or event is situated at or above the horizon, within the expanse of the atmosphere.
The phrase is frequently used to describe astronomical objects such as stars, planets, moons, or any other celestial bodies that can be observed in the visible heavens. For instance, when stargazing at night, one might witness a multitude of dazzling stars glittering in the sky. Similarly, during the daytime, the sun is a prominent entity in the sky, providing light and heat to the Earth.
Moreover, "in sky" could also refer to natural phenomena occurring above the Earth's surface. This encompasses phenomena like clouds, rainbows, lightning, meteors, or even the appearance of a celestial event such as an eclipse or a comet. These events or entities, visible from the ground, are said to be "in sky" due to their location in the expansive air column that envelops the Earth.
Overall, "in sky" serves as a descriptor that situates objects or phenomena within the celestial realm, indicating their presence or occurrence in the vast expanse of the atmospheric sphere.
