What Does It Mean to Fail?

Let's just say that I was once a dreamer with broken wishes -or broken spirit. Let me ask: what does it mean to fail?

I was always conviced that failure happens when you give up. But I guess I wasn't strong enough to face my disappointment when I cannot get 'something'. I have kept trying yet none was fruitful. Then it hit me hard, you are just some loser and poof! My spirit for pursuing my dreams disappeared.