The spelling of the word "index" can be somewhat confusing due to its irregularities in phonetic transcription. The IPA phonetic transcription for "index" is /ˈɪn.dɛks/. The first syllable, "in", is pronounced as in the word "sin". The second syllable, "dex", is pronounced like "decks" without the "ks" sound. The silent "e" in "dex" may lead some to believe it is pronounced like "decks-eh", but this is not the case. Remembering the correct phonetic transcription and pronunciation will aid in proper spelling.
Index (noun):
1. A list, directory, or catalog containing references or pointers to specific information, usually arranged in alphabetical, numerical, or chronological order, to assist in finding desired details or items. Indexes are commonly found in books, library catalogs, databases, or search engines, allowing users to quickly locate relevant material or resources.
2. A numerical value or statistic used to indicate changes or trends in a specific area or industry. It serves as a reference point for comparison over time and is often computed based on a formula using multiple variables or data points. For example, stock market indexes like the Dow Jones Industrial Average or S&P 500 provide an overview of the overall performance of a group of stocks.
3. In mathematics, an index represents the exponent or power to which a number or quantity is raised. It is used in notations like index notation or exponent notation, expressing repeated multiplications of a number by itself. For instance, in the expression 5^3, the number 3 acts as the index, representing the three times 5 is multiplied by itself.
4. In computer science, an index is a data structure used to optimize the retrieval and search efficiency of information stored in a database or collection. It enables quick access to specific data by organizing and storing key values and pointers to associated records, facilitating faster queries and reducing the need for full scans of data.
1. The second finger (the thumb being counted as the first), forefinger, or pointing finger. 2. A number denoting the relation, in respect of size, capacity, or function, of one part or thing to another, the latter being usually taken as 1 or 100. 3. A list of subjects, with page references, treated of in a book.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
• That which points out; a table of references; in alg., the indicator of the power of a quantity.
• To provide with or form a table of references to, as to a book.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word index originated from Latin, where it was derived from the word indicare. Indicare combines the prefix in (meaning in or to) with the verb dicare (meaning to declare or show). Therefore, the literal meaning of index in Latin is to point out or to show.