Wordweb is a very interesting tool for English learners that explains the meaning of any word in the same language. If you have doubts about what a certain term means, press the keyboard shortcut that launches the application and check its meaning.
The keys that activate the application by default are the following: CTRL plus Right mouse button or CTRL, ALT and W. Wordweb not only shows the meaning of the selected word, but also synonyms, antonyms, the category to which it belongs, etc. .
In addition, from the application itself it is possible to access the description of the term in services such as Wikipedia, Wiktionary, WordReference or Thesaurus, among other services.