Expanding your vocabulary is one of the most effective, and easiest, ways to improve your English. The following resources will enable you to do just that.
3,000 Core Vocabulary Words — Merriam-Webster's list of English words that are most important for learners to know. View by topic or alphabetically.
Enchanted Learning — Over 150 vocabulary word lists by theme with printable worksheets.
English Vocabulary Exercises — Features over 750 gap-fill exercises to learn and review over 2000 items of General vocabulary and Academic vocabulary in English.
English Vocabulary Guide — Uses a thematic approach and lots of pictures and sounds to go with the words.
Everyday English Vocabulary — Free PDF e-book from EF English Live.
Learning Chocolate — Uses pictures, sounds, and games to make learning a new language as fun as enjoying a piece of chocolate!
ManyThings.org — Word lists on various topics, plus games, quizzes, and puzzles using each of those lists.
My English Pages — A list of thematic vocabulary lessons arranged in categories.
Professor Word — Free bookmarklet that helps you learn new words while you surf the web.
Test Your Vocab — Find out how many words you know.
The Oxford 3000 — A list of the 3000 most important words to learn in English.
SpeakLanguages — Phrase guides and thematic vocabulary lists with audio.
Vocabulary.com —An adaptive learning game that will have you mastering new words in no time.
Vocabulary.co.il — Free online word games specifically designed to build vocabulary skills.
VocBox — Create your own vocabulary sets, exchange sets with other users, or start learning with one of the official VocBox sets, all for free. Watch video here.
Woodward English — Vocabulary lists at three levels with detailed explanations. Check your learning with the Vocabulary Games.
The 13 Best Ways to Learn English Vocabulary (FluentU)
21 Digital Tools to Build Vocabulary (Kimberly Tyson)
15 top tips for increasing your range of vocabulary! (Hot English)