they aren't the same thing.
oh, and by the way, the balloon for high altitude get gigantic as they rise and are much larger than you imagine.
much much larger. do your research
>blimp
a high altitude balloon is a gigantic thing, and made of a material that is flat unless inflated.
the dirigibles are usually made from frames and are filled. They are hollow and filled but they aren't 'inflated'.
talking about yourself?