As a Noun:
1. The feeling of resentment and bitterness you have when you think someone is trying to take away something that belongs to you. English = jealousy.
2. The feeling you have when you wish that you could have the qualities or possessions that someone else has. English = jealousy, envy.
As a Verb or Adjective:
1. To feel that you must try to keep something that you have, because you think someone else might take it away from you. English = (be) jealous.
2. To feel anger or bitterness towards someone who has something that you would like to have. English = (be) jealous, (be) envious.