Best Answer - Chosen by Voting
The best ways to increase your vocabulary are through real life application rather than memorizing dictionaries.
-- READ! Start simple with books at or just above your level. Seeing words in context is important.
-- Write out example sentences that you would likely need to say which include words you want to learn or have studied.
-- In a similar way, write out a dialogue, a song, or a little story that uses the words.
-- If you are in a place alone, or where your roommates won't mind, label things in your environment by actually taping pieces of paper to furniture, etc.
-- Keep a little notebook with you so when you hear or read a word you want to know better, you can write it down to explore it further later.
-- Ask people when they say a word you don't understand or ask for clarification on spelling.
-- Look up synonyms and antonyms or words, not just the meaning...the more connections, the better you'll remember.
-- Use your English with others because in the interaction you can recognize what words or type of words you need to know more.
Hope some of these help. ^^