Garner's Modern English Usage

Garner's Modern English Usage (GMEU), written by Bryan Garner and published by Oxford University Press, is a usage dictionary and style guide for contemporary Modern English. It was first published in 1998 as A Dictionary of Modern American Usage, with a focus on American English, which it retained for the next two editions as Garner's Modern American Usage (GMAU). It was expanded to cover English more broadly in the 2016 fourth edition, under the present title. The work covers issues of usage, pronunciation, and style, from distinctions among commonly confused words and phrases and notes on how to prevent verbosity and obscurity. In addition, it contains essays about the English language. An abridged version of the first edition was also published as The Oxford Dictionary of American Usage and Style in 2000.

The first edition was published in 1998 as A Dictionary of Modern American Usage, released in an abridged, paperback edition in 2000 as The Oxford Dictionary of American Usage and Style (not republished under this title since). In 2003, the second full edition was published under the title Garner's Modern American Usage, with one-third more content than the original edition. A third edition was published under that title in August 2009. An updated edition, taking advantage of tools like Google N-grams, and covering British and other World Englishes as well as American, was released in April 2016, as Garner's Modern English Usage. This was followed by something of a companion volume, The Chicago Guide to Grammar, Usage, and Punctuation (Chicago University Press, May 2016), Garner's major expansion of his chapter on the topic in the last several editions of The Chicago Manual of Style.

In its 2016 embodiment as GMEU, the book included some 2,300 ratios of usage frequency to establish what book publishers have traditionally considered standard vs. variant forms. This extensive use of empirical evidence surpasses that of earlier editions of Garner's books and that of all earlier usage writers.