hope VS wish
hope verb – to want something to happen and think that it is possible
hope (for something) We are hoping for good weather on Sunday.
All we can do now is wait and hope.
‘Will you be back before dark?’ ‘I hope so, yes.’
The exam went better than I hoped.
‘Do you think it will rain?’ ‘I hope not.’
|…but I brought my folding umbrella just in case!|
wish verb – to want something to happen or to be true even though it is unlikely or impossible
wish (that)… I wish I was taller.
I wish I hadn’t eaten so much.
‘Where is Jim now?’ ‘I only wish I knew!’
I wish you wouldn’t leave your clothes all over the floor.
Definitions from http://www.oxfordlearnersdictionaries.com/