There are a number of online venues that equip English learners with vocabulary practice, with the website for English as a Second Language (ESL) at the Frankfurt International School being one extensive resource. Other venues include A4ESL.org, About.com and ManyThings.org.
The Frankfurt International School site contains more than one hundred vocabulary quizzes for English learners, with topics often arranged alphabetically. Users can select either beginning or harder word quizzes. They can also filter through more specific subject matters, such as academic words, idioms, proverbs or plain vocabulary lists. Quizzes are found in both word and picture formats.
About.com has several vocabulary builders designed for beginner, intermediate and advanced learners. The site also offers more specialized vocabulary quizzes in different areas of business as well as a tutorial on phrasal verbs. Additionally, there is an article series devoted solely to learning strategies to help expand, among other things, vocabulary range and idiomatic usage.
ManyThings.org, a site devoted to ESL students, offers word lists, games, puzzles and quizzes to help advance study. The word lists themselves are broken down into useful categories applying to daily life, such as weather, animals, clothes, days of the week and family members. Other lists include food and restaurant vocabulary, the body, car parts, geography and transportation.