When you read something in English, do you try to understand every word? By doing this, you limit your general understanding of the actual reading. You don’t get any real idea of what the article is about – you end up with a mixed-up definition of many words in your head.
Instead, read through the text without stopping. Ask yourself, ‘What is this text about?’ Read through it again, highlighting the words or phrases you don’t understand. After reading for the second time, look at the words you highlighted, and try to guess the meaning from the context (the words around it, the subject of the sentence, or the paragraph, or even the whole text). Only check in a dictionary for the correct meaning after you have done this.
When you take learning into your own hands, rather than a dictionary, you will feel much more rewarded! Plus, it will help you to remember. Dictionaries don’t have brains.