As a Noun:
1. The state of feeling disappointed. English = disappointment.
2. Something which makes you feel disappointed. English = disappointment.
As a Verb or Adjective:
1. Of people, places or things, to not satisfy you because they are not as good as you had hoped, or they do not do what you want. English = disappoint.
2. To feel sad because something that you wanted has not happened or because it was not as good as you had hoped it would be. English = (be) disappointed.