American English Language Datasets | 150+ Years of Research | Dictionary Data | Audio Data | NLP Data | US English Coverage

Derived from over 150 years of lexical research, these comprehensive textual and audio data, focused on American English, provide linguistically annotated data. Ideal for NLP applications, LLM training and/or fine-tuning, as well as educational and game apps. One of our flagship datasets, the American English data is expertly curated and linguistically annotated by professionals, with annual updates to ensure accuracy and relevance. The below datasets in American English are available for license: 1. American English Monolingual Dictionary Data 2. American English Synonyms and Antonyms Data 3. American English Pronunciations with Audio Key Features (approximate numbers): 1. American English Monolingual Dictionary Data Our American English Monolingual Dictionary Data is the foremost authority on American English, including detailed tagging and labelling covering parts of speech (POS), grammar, region, register, and subject, providing rich linguistic information. Additionally, all grammar and usage information is present to ensure relevance and accuracy. - Headwords: 140,000 - Senses: 222,000 - Sentence examples: 140,000 - Format: XML and JSON format - Delivery: Email (link-based file sharing) and REST API - Updated frequency: annually 2. American English Synonyms and Antonyms Data The American English Synonyms and Antonyms Dataset is a leading resource offering comprehensive, up-to-date coverage of word relationships in contemporary American English. It includes rich linguisti