noun
The act of reducing or shortening
A shortened form of a work
abridgment describes a work condensed from a larger work by omitting the less important parts, but keeping the main contents more or less unaltered; an abstract is a short statement of the essential contents of a book, article, speech, court record, etc. often used as an index to the original material; brief is applied to a concise statement of the main points of a law case; a summary is a brief statement of the main points of the matter under consideration and especially connotes a recapitulating statement; a synopsis is a condensed, orderly treatment, as of the plot of a novel, that permits a quick general view of the whole; digest is applied either to a concise, systematic treatment, generally more comprehensive in scope than a synopsis, and, in the case of technical material, often arranged under titles for quick reference or to a collection of articles, stories, etc. condensed from other publications; an epitome is a statement of the essence of a subject in the shortest possible form
See abridgment in Webster's New World Roget's A-Z Thesaurus II
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