I just just "5,340" as a result, this is an hint for me that I spend too much time trying to improve my hearing skills and too little trying to learn words outs

I just just "5,340" as a result, this is an hint for me that I spend too much time trying to improve my hearing skills and too little trying to learn words outside the domain I mostly use English for (computers, programming, technology, ...). I wonder if there is some good web site that helps you learning new words. An iPhone application will also work for me, but I need one that is able to also tell me the sound of the word. I searched a bit in the past without good results.