What is the difference between hypertonic, hypotonic, and isotonic?

Hyper- over 
hypo- below 
iso- equal 

Ex: a cell with a semipermeable membrane is put in the following solutions
Hypertonic solution; 
this means that the solute is more concentrated on the outside of a cell 
water would move out of the cell to dilute to  the concentration 
the cell would shrivel
Hypotonic solution:  
this would mean solute is more concentrated on the inside of a cell 
water would move into the cell 
the cell could burst or lyse 
Isotonic solution: 
the solute is in equal concentrations inside and outside of the cell 
it is in equilibrium 
water still moves in and out of the cell though

Active site is where they touch.