One of the best ways to learn English is to use dictionaries with English definition instead of translation dictionary. By using a dictionary with English definitions, you can find the meaning of the word as described in English.
If you want a free dictionary with your computer's English definitions, tray dictionary is a great alternative.
This app is in the background in the system tray and runs only when you click it. When you do, a small query window will open automatically for the word you want to look for
After you type the word, the application will show different variations for more than one, each with its corresponding definitions.
The Tray Dictionary uses American English for the prestigious Cambridge Dictionary for its results. In this way, its search results are guaranteed to be reliable.
To use this application, you'll need to be connected to the Internet.