VS.

Category vs. Index

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Categorynoun

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.’;

Indexnoun

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.’;

Categorynoun

(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.’;

Indexnoun

The index finger; the forefinger.

Categorynoun

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.’;

Indexnoun

A movable finger on a gauge, scale, etc.

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Categorynoun

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.’;

Indexnoun

(printing) A symbol resembling a pointing hand, used to direct particular attention to a note or paragraph.

Categorynoun

a collection of things sharing a common attribute;

‘there are two classes of detergents’;

Indexnoun

That which points out; that which shows, indicates, manifests, or discloses.

Categorynoun

a general concept that marks divisions or coordinations in a conceptual scheme

Indexnoun

A sign; an indication; a token.

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Categorynoun

a class or division of people or things regarded as having particular shared characteristics

‘the various categories of research’;

Indexnoun

(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.

Categorynoun

each of a possibly exhaustive set of classes among which all things might be distributed.

Indexnoun

(economics) A single number calculated from an array of prices or of quantities.

Categorynoun

each of the a priori conceptions applied by the mind to sense impressions.

Indexnoun

(science) A number representing a property or ratio, a coefficient.

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Indexnoun

(mathematics) A raised suffix indicating a power.

Indexnoun

An integer or other key indicating the location of data e.g. within an array, vector, database table, associative array, or hash table.

Indexnoun

A data structure that improves the performance of operations on a table.

Indexnoun

(obsolete) A prologue indicating what follows.

Indexverb

(transitive) To arrange an index for something, especially a long text.

Indexverb

To inventory, to take stock.

Indexverb

To be indexical for (some situation or state of affairs); to indicate.

Indexnoun

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.’;

Indexnoun

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.

Indexnoun

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.

Indexnoun

A prologue indicating what follows.

Indexnoun

The second finger, that next to the pollex (thumb), in the manus, or hand; the forefinger; index finger.

Indexnoun

The figure or letter which shows the power or root of a quantity; the exponent.

Indexnoun

The ratio, or formula expressing the ratio, of one dimension of a thing to another dimension; as, the vertical index of the cranium.

Indexnoun

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.

Indexnoun

A file containing a table with the addresses of data items, arranged for rapid and convenient search for the addresses.

Indexnoun

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.

Indexnoun

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.

Indexverb

To provide with an index or table of references; to put into an index; as, to index a book, or its contents.

Indexverb

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.

Indexverb

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.

Indexnoun

a numerical scale used to compare variables with one another or with some reference number

Indexnoun

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

Indexnoun

a mathematical notation indicating the number of times a quantity is multiplied by itself

Indexnoun

an alphabetical listing of names and topics along with page numbers where they are discussed

Indexnoun

the finger next to the thumb

Indexverb

list in an index

Indexverb

provide with an index;

‘index the book’;

Indexverb

adjust through indexation;

‘The government indexes wages and prices’;

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