At this stage it is a good idea to look the words up in an English-English dictionary when you do reading, vocabulary or writing exercises because sometimes the meaning of a word doesn't have exactly the same connotations or doesn't even exist in your mother tongue. In addition, you find interesting information such as collocations or synonyms.
Ldoceonline is a good online English-English dictionary. Look at the following examples:
Example 1
Example 2
