Category vs. Index — What's the Difference?
Difference Between Category and Index
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Definitions
Category➦
A class or division of people or things regarded as having particular shared characteristics
The various categories of research
Index➦
An alphabetized list of names, places, and subjects treated in a printed work, giving the page or pages on which each item is mentioned.
Category➦
Each of a possibly exhaustive set of classes among which all things might be distributed.
Index➦
A thumb index.
Category➦
A specifically defined division in a system of classification; a class.
Index➦
A table, file, or catalog.
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Category➦
Aristotle's modes of objective being, such as quality, quantity, or relation, that are inherent in all things.
Index➦
(Computers) A list of keywords associated with a record or document, used especially as an aid in searching for information.
Category➦
Kant's modes of subjective understanding, such as singularity, universality, or particularity, that organize perceptions into knowledge.
Index➦
Something that reveals or indicates; a sign
"Her face ... was a fair index to her disposition" (Samuel Butler).
Category➦
A basic logical type of philosophical conception in post-Kantian philosophy.
Index➦
A character (☞) used in printing to call attention to a particular paragraph or section. Also called hand.
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Category➦
A property or structural unit of a language, such as a part of speech or a type of phrase.
Index➦
An indicator or pointer, as on a scientific instrument.
Category➦
A specific grammatical defining property of a linguistic unit or class, such as number or gender in the noun and tense or voice in the verb.
Index➦
(Mathematics) A number or symbol, often written as a subscript or superscript to a mathematical expression, that indicates an operation to be performed, an ordering relation, or a use of the associated expression.
Category➦
(Mathematics) A class of objects, together with a class of morphisms between those objects, and an associative composition rule for those morphisms. Categories are used to study a wide variety of mathematical constructions in a similar way.
Index➦
A number derived from a formula, used to characterize a set of data.
Category➦
A group, often named or numbered, to which items are assigned based on similarity or defined criteria.
This steep and dangerous climb belongs to the most difficult category.
I wouldn't put this book in the same category as the author's first novel.
Index➦
A statistical value that represents the price or value of an aggregate of goods, services, wages, or other measurable quantities in comparison with a reference number for a previous period of time.
Category➦
(mathematics) A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative.
One well-known category has sets as objects and functions as arrows.
Just as a monoid consists of an underlying set with a binary operation "on top of it" which is closed, associative and with an identity, a category consists of an underlying digraph with an arrow composition operation "on top of it" which is transitively closed, associative, and with an identity at each object. In fact, a category's composition operation, when restricted to a single one of its objects, turns that object's set of arrows (which would all be loops) into a monoid.
Index➦
A number that represents the change in price or value of stocks or other securities in a particular market, sector, or asset class.
Category➦
One of the highest classes to which the objects of knowledge or thought can be reduced, and by which they can be arranged in a system; an ultimate or undecomposable conception; a predicament.
The categories or predicaments - the former a Greek word, the latter its literal translation in the Latin language - were intended by Aristotle and his followers as an enumeration of all things capable of being named; an enumeration by the summa genera i.e., the most extensive classes into which things could be distributed.
Index➦
The stocks or other securities represented by an index.
Category➦
Class; also, state, condition, or predicament; as, we are both in the same category.
There is in modern literature a whole class of writers standing within the same category.
Index➦
Index Roman Catholic Church A list formerly published by Church authority, restricting or forbidding the reading of certain books.
Category➦
A collection of things sharing a common attribute;
There are two classes of detergents
Index➦
To furnish with an index
Index a book.
Category➦
A general concept that marks divisions or coordinations in a conceptual scheme
Index➦
To enter in an index.
Index➦
To indicate or signal.
Index➦
To adjust through indexation.
Index➦
An alphabetical listing of items and their location.
The index of a book lists words or expressions and the pages of the book upon which they are to be found.
Index➦
The index finger; the forefinger.
Index➦
A movable finger on a gauge, scale, etc.
Index➦
(typography) A symbol resembling a pointing hand, used to direct particular attention to a note or paragraph.
Index➦
That which points out; that which shows, indicates, manifests, or discloses.
Index➦
A sign; an indication; a token.
Index➦
(linguistics) A type of noun where the meaning of the form changes with respect to the context; e.g., 'Today's newspaper' is an indexical form since its referent will differ depending on the context. See also icon and symbol.
Index➦
(economics) A single number calculated from an array of prices or of quantities.
Index➦
(science) A number representing a property or ratio; a coefficient.
Index➦
(mathematics) A raised suffix indicating a power.
Index➦
An integer or other key indicating the location of data, e.g. within an array, vector, database table, associative array, or hash table.
Index➦
A data structure that improves the performance of operations on a table.
Index➦
(obsolete) A prologue indicating what follows.
Index➦
(transitive) To arrange an index for something, especially a long text.
MySQL does not index short words and common words.
Index➦
To inventory; to take stock.
Index➦
To normalise in order to account for inflation; to correct for inflation by linking to a price index in order to maintain real levels.
Index➦
To measure by an associated value.
Index➦
To be indexical for (some situation or state of affairs); to indicate.
Index➦
(computing) To access a value in a data container by an index.
Index➦
That which points out; that which shows, indicates, manifests, or discloses; as, the increasing unemployment rate is an index of how much the economy has slowed.
Tastes are the indexes of the different qualities of plants.
Index➦
That which guides, points out, informs, or directs; a pointer or a hand that directs to anything, as the hand of a watch, a movable finger or other form of pointer on a gauge, scale, or other graduated instrument.
Index➦
A table for facilitating reference to topics, names, and the like, in a book, usually giving the page on which a particular word or topic may be found; - usually alphabetical in arrangement, and printed at the end of the volume. Typically found only in non-fiction books.
Index➦
A prologue indicating what follows.
Index➦
The second finger, that next to the pollex (thumb), in the manus, or hand; the forefinger; index finger.
Index➦
The figure or letter which shows the power or root of a quantity; the exponent.
Index➦
The ratio, or formula expressing the ratio, of one dimension of a thing to another dimension; as, the vertical index of the cranium.
Index➦
A number providing a measure of some quantity derived by a formula, usually a form of averaging, from multiple quantities; - used mostly in economics; as, the index of leading indicators; the index of industrial production; the consumer price index. See, for example, the consumer price index.
Index➦
A file containing a table with the addresses of data items, arranged for rapid and convenient search for the addresses.
Index➦
A number which serves as a label for a data item and also represents the address of a data item within a table or array.
Index➦
The Index prohibitorius, a catalogue of books which are forbidden by the church to be read; also called Index of forbidden books and Index Librorum Prohibitorum.
Index➦
To provide with an index or table of references; to put into an index; as, to index a book, or its contents.
Index➦
To adjust (wages, prices, taxes, etc.) automatically so as to compensate for changes in prices, usually as measured by the consumer price index or other economic measure. Its purpose is usually to copensate for inflation.
Index➦
To insert (a word, name, file folder, etc.) into an index or into an indexed arrangement; as, to index a contract under its date of signing.
Index➦
A numerical scale used to compare variables with one another or with some reference number
Index➦
A number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
Index➦
A mathematical notation indicating the number of times a quantity is multiplied by itself
Index➦
An alphabetical listing of names and topics along with page numbers where they are discussed
Index➦
The finger next to the thumb
Index➦
List in an index
Index➦
Provide with an index;
Index the book
Index➦
Adjust through indexation;
The government indexes wages and prices
