Pronunciation: [ba͡ɪ nˈʌmbə] (IPA) 
The spelling of the phrase "by number" is relatively straightforward when using the International Phonetic Alphabet (IPA). The word "by" is pronounced /baɪ/, with a long "i" sound, followed by the word "number", which is pronounced /ˈnʌm.bər/. The "u" in "number" is pronounced like the short "u" sound in "cup". Overall, "by number" is spelled as it sounds, and can be easier to remember with the use of IPA pronunciation guides.
The term "by number" refers to a method of categorization or organization that is based on a system of sequential numerical order. It implies sorting or listing items according to their numerical values, positions, or ranks within a specific series or sequence.
When something is described as being organized or identified "by number," it suggests that a specific numerical identifier is assigned to each item or element in the set. This system allows for easy referencing, comparison, and identification of the elements in a particular order.
The concept of "by number" is commonly used in various fields, such as accounting, inventory management, statistics, and data analysis. For instance, when counting units of a product in a warehouse, they may be labeled or categorized "by number" to ensure accurate tracking and efficient retrieval.
In education, students may be assigned identification numbers to differentiate them from others in their class, grade, or school. This helps in record-keeping, grading, and administrative purposes.
In some contexts, "by number" can also refer to making decisions or actions based on numerical factors, such as voting by counting the number of raised hands or ranking a list of candidates based on the number of votes received.
In summary, "by number" refers to a systematic method of organizing, categorizing, or identifying items using sequential numerical values or ranks. It provides a structured way to handle, analyze, and reference elements within a set or sequence.
The phrase "by number" is derived from Middle English and originates from the Old French word "nombre" and the Latin word "numerus". Both mean "number". Over time, it evolved in English to become "by number", indicating that something is done or organized according to a specific numerical order or system.
