Pronunciation: [ɹˈʌnz bˈa͡ɪ] (IPA) 
The spelling of "runs by" can be explained by its phonetic transcription: /rʌnz baɪ/. The first syllable "runs" is spelled with a regular "u" and "n" and the pronunciation is represented by the phoneme /rʌnz/. The second syllable "by" is spelled with a "y" and pronounced with the phoneme /baɪ/. "Runs by" can be used to refer to someone or something passing by quickly or regularly, as in "the train runs by the station every hour."
The term "runs by" is a phrasal verb that can have multiple meanings depending on the context in which it is used. It generally refers to the act of completing a task or performing an action swiftly or efficiently.
One possible definition of "runs by" is when someone seeks approval or validation from another person. In this sense, it means to present an idea, plan, or suggestion to someone for their feedback or opinion. For example, if a student comes up with a new project idea, they might run it by their teacher to get their approval and suggestions.
Another meaning of "runs by" is to quickly mention or inform someone about something. It implies a brief or casual explanation or update. For instance, a friend might run by your house to let you know about a change in plans or a recent development.
Moreover, "runs by" can also refer to the act of quickly reviewing or checking something. It signifies going through a list, document, or database to ensure accuracy or completeness. For instance, a manager might run by a report to double-check for errors before submitting it.
Overall, the phrase "runs by" encompasses the idea of efficiently presenting, mentioning, reviewing, or seeking approval in various situations, emphasizing a prompt and effective completion of the task at hand.
The phrase "runs by" is a combination of the verb "runs" and the preposition "by". Each of these words has its own distinct etymology.
The verb "runs" comes from the Old English word "rinnan" which means "to flow, to run". It has Germanic roots and is cognate with similar words in other Germanic languages such as Old High German "rinnan", Old Norse "rinn(a)", and Dutch "runnen". The word has remained relatively unchanged in its basic meaning throughout the centuries.
On the other hand, the preposition "by" originates from the Old English word "bi" which meant "near" or "at" and is ultimately derived from the Old Norse word "bi" meaning "by, near, with, about". The word "by" has undergone various shifts in its meaning over time, evolving to become a preposition indicating location or proximity.
