Difference between osmosis and diffusion

Difference between 
                                     Osmosis and diffusion

Osmosis. 
                 1- It take place in the presence of a
semipermeable membrane.

Diffusion.
                   1- It occurs directly and doesn't require any semipermeable membrane.

Osmosis.
                 2- solvent molecules move from a solution of lower concentrations to that of higher concentration.

Diffusion.
                  2- Both the molecule of solute and solvent move from higher concentration to lower one.

Osmosis.
                3- It is restricted to solutions only .

Diffusion.
                  3- It is applicable to both gases and liquids.

Osmosis.
                 4- Osmosis cause when an external pressure is applied .

Diffusion.
                  4- It can not be stopped by applying external pressure.