If OP means "how to learn (and retain) the words fastest," here's some advice I gave in an earlier thread on this topic:
http://mudcat.org/thread.cfm?threadid=60984#3041746 (Thread: Learning and remembering the words)

My advice is somewhat opposed to advice given above: it attempts to reduce the repetition involved in the most typical habits for learning, which tend to be both time-wasteful and even counter-productive. Of course, each person has their own learning strengths and weaknesses, as well as their own ways of thinking/remembering, and must adapt their learning process accordingly. But give the tips I've listed a serious trial before dismissing them; you may be surprised at the results.