Back The American Heritage Dictionary of the English Language AF قاموس التراث الأمريكي للغة الإنجليزية Arabic American Heritage Dictionary BAR আমেরিকান হেরিটেজ অভিধান Bengali/Bangla American Heritage Dictionary German The American Heritage Dictionary of the English Language EO فرهنگ واژگان زبان انگلیسی امریکن هریتیج FA The American Heritage Dictionary of the English Language Portuguese 美國傳統英語字典 Chinese
The American Heritage Dictionary of the English Language (AHD) is a dictionary of American English published by HarperCollins. It is currently in its fifth edition (since 2011).
Before HarperCollins acquired certain business lines from Houghton Mifflin Harcourt in 2022, the family of American Heritage dictionaries had long been published by Houghton Mifflin Harcourt and its predecessor Houghton Mifflin. The first edition appeared in 1969, an outgrowth of the editorial effort for Houghton Mifflin's American Heritage brand of history books and journals. The dictionary's creation was spurred by the controversy during the 1960s over the perceived permissiveness of the Webster's Third New International Dictionary (1961). The main dictionary became the flagship title as the brand grew into a family of various dictionaries, a dictionary-thesaurus combination, and a usage guide.