Dictionaries and Word Roots
Longman Learner’s Dictionary
Merriam Webster Medical Dictionary
Oxford Advanced Learner’s Dictionary
Ozdic Collocation Dictionary
Phrasal Verb Dictionary
Word Morphology
Medical Word Morphology
Corpora, AWL, and Phrasebank
English Corpora (a collection of many corpora)
Academic Word List
Academic Phrasebank for Research Writing
Grammar
Articles (a, an, the)
Prepositions
Verb Tenses
English First Grammar & Usage
Scientific Writing Style
Pronunciation
Linguistic Phonetics Guide
Pronunciation Guides
Speech Accent Archive
Classroom Communication
Academic Listening Strategies
Class Discussion Strategies
Academic Presentations
Talking with Instructors
Emailing Your Instructor
Building Your Academic Vocabulary
Vocabulary Building: How to Use Learner’s Dictionaries
Vocabulary Building: How to Use Corpora
Mastering Word Choice with the Corpus of Contemporary English