A Ten letter Word

I am a 10 letter Word.

I have every vowels in me.

If you take 4th, 8th, 9th and 10th letters gives Prison.

The 3rd, 4th, 5th, 7th and 10th letters means Grade.

Who am I?

It is

DISCOURAGE

If you take 4th,8th,9th and 10th letters gives Prison

DISCOURAGE (CAGE)

The 3rd,4th,5th,7th and 10th letters means Grade

DISCOURAGE (SCORE)

• You beat me to the second! I was just finishing my last spoiler when you posted it :x – Radhato Jul 21 '16 at 8:56
• Maybe next time @Radhato! :) – Jishnu Chandran Jul 21 '16 at 9:24