For beginners--A1.1-A1.2
Click on the sound icon to hear the word
This site has a variety of topics and pronunciations for beginners.
This visual dictionary is for more advanced learners.
For higher level learners: A2.2 and above
This Self Study Vocabulary Course is called WordGeneration
http://mrscoleysays.weebly.com/context-clues-online-games.html
https://www.quia.com/quiz/1449361.html
Review vocabulary with context clues
Online Quiz: Context Clues
https://www.quia.com/pop/35971.html
Online Quiz: Context Clues
http://www.softschools.com/quizzes/language_arts/using_context_clues/quiz1280.html