share is liability of busines ,stock is  assets

Simply put, a stock represents part ownership of a company.
Anyone who holds a stock of say, Reliance, can claim that he
has a stake in the company and has a proportional share in
the company’s assets and profits. The reason why we use the
word proportional is because the level of ownership depends
not only on the number of shares a person holds but also on
the total number of shares that have been issued. For
example, if you were to hold 5 shares of Reliance, and had
Reliance issued 100 shares, you would have a 5% ownership of
Reliance. Most companies also give voting rights to all its
shareholders which gives its shareholders a proportional
vote in certain major company decisions.

fully paid bulk of shares is known as stock 

share may be partly paid


stock can be divided share can't

fully paid bulk of shares is known as stock 
both con be dividend

stock and shares is same