01 n. A word used as an entry point into an index which serves to identify files, records, texts, or other data containing the keyword or some re…
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A word used as an entry point into an index which serves to identify files, records, texts, or other data containing the keyword 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}.