Identifier vs. Keyword

Identifiernoun

Someone who identifies; a person who establishes the identity of.

Identifiernoun

Something that identifies or uniquely points to something or someone else.

Identifiernoun

A guidebook that helps determine the specific class of an object (such as a mushroom, herb, fish, bird, drug, or mineral), or its individual identity (such as that of a star).

Identifiernoun

A formal name used in source code to refer to a variable, function, procedure, package, etc. or in an operating system to refer to a process, user, group, etc.

Identifiernoun

(HTML) A code that distinguishes a particular element from all other elements in a document.

Identifiernoun

(databases) A primary key.

Identifiernoun

a symbol that establishes the identity of the one bearing it

Identifier

An identifier is a name that identifies (that is, labels the identity of) either a unique object or a unique class of objects, where the or class may be an idea, physical countable object (or class thereof), or physical noncountable substance (or class thereof). The abbreviation ID often refers to identity, identification (the process of identifying), or an identifier (that is, an instance of identification).

Keywordnoun

Any word used as the key to a code.

Keywordnoun

(information science) Any word used in a reference work to link to other words or other information.

Keywordnoun

(programming) A reserved word used to identify a specific command, function, etc.

Keywordnoun

(linguistics) Any word that occurs in a text more often than normal.

Keywordverb

(transitive) To tag with keywords, as for example to facilitate searching.

Keywordnoun

A word used as an entry point into an index which serves to identify files, records, texts, or other data containing the key or some related word, such as a synonym. It is a type of key{15}; as, a boolean combination of keywords is more effective for information retrieval than a single key{15}.