I have heard people say that they can only learn a word if they use it. I do not agree. I know far more words passively in my foreign languages, than I use actively. There is nothing wrong with that. I enjoy my listening and reading and feel that understanding what I hear and read is essential. I do not mind struggling to find words when I speak. I find that the more I listen and read, and review my words and phrases, the greater my passive vocabulary, and therefore the greater my potential active vocabulary. When I have more opportunity to speak, I find these passive words gradually migrating over into the active category. Here is the podcastDownload Passive vocabulary