When you were learning your native language you learned a new word by learning how people used that word. I recommend that to learn a new word you practice using it in sentences. The more practice the better.
It is helpful when learning a new word to learn its synonyms, but what if you don't know any of the synonyms? (That is my situation regarding Spanish. You could tell me wht synonnyms of a word, but they would have no meaning to me.)
