Vocabulary and spelling

Dictionaries

• Longman Dictionary of Contemporary English – good for ESL/EAL writers and beginners
• Online Etymology Dictionary – learn about the origin of words to help you understand definitions
• Oxford English Dictionary (OED) – the gold standard in dictionaries
• Oxford Learner’s Dictionaries – OED for ESL/EAL writers and beginners

Thesauruses

• WordHippo
• Onelook Reverse Dictionary and Thesaurus

Collocations, idioms, and phrasal verbs

• Idioms, Athabasca University
• Phrasal verbs, Athabasca University
• Phrasal verb alternatives – useful for concise writing
• Spelling and collocations module, NAIT

Learning about words

• Parts of speech, Athabasca University
• Word forms, Athabasca University
• Irregular plurals, Athabasca University
• Easily confused words, Grammar Monster
• Guide to Grammar and Writing