Pronunciation: [pˈas ˌɪntʊ] (IPA) 
The phrase "pass into" can be tricky to spell due to its combined consonant sounds. The "p" sound at the beginning is followed by a "s" sound, creating a unique combination. The "a" is pronounced as in "cat," and the "ss" is followed by a soft "i" sound as in "bin." Finally, the "t" sound is emphasized at the end. Using IPA phonetic transcription, the spelling would be /pæs ˈɪntu/.
The term "pass into" is a phrasal verb that describes the action of moving from one state, condition, or location to another, typically implying a transition or a progression. It can be understood as the act of crossing a threshold or boundary into a different realm, both physically and metaphorically.
In a physical sense, "pass into" refers to traversing or entering a specific space or area. For instance, a person can pass into a room, a building, or a country by physically moving from one place to another. Similarly, an object can pass into another object or substance, such as water passing into a container.
Metaphorically, "pass into" denotes a transition from one state to another. It signifies the movement from one condition, phase, or situation to a different and often more advanced one. For instance, a novice can pass into an expert, a student can pass into a graduate, or a caterpillar can pass into a butterfly. This usage suggests a progression or development from an initial state to a final or desired outcome.
Overall, "pass into" encompasses the notions of physical movement across boundaries as well as the figurative transformation or advancement from one state to another. It signifies transition, progression, and metamorphosis in both literal and metaphorical contexts.
The word "pass" originated from the Old French word "passer", which meant "go by" or "cross over". This was derived from the Latin term "passus", meaning "a step" or "a pace". The word "into" is a preposition that can be traced back to the Old English word "intō", which is a combination of the preposition "in" (meaning "inside" or "within") and the preposition "to" (indicating direction). Therefore, the etymology of the phrase "pass into" involves the Old French and Latin roots of "pass" and the Old English roots of "into".
