The difference between Bolt action and Lever action

When used as nouns, bolt action means a type of firearm action in which the weapon's bolt is operated manually by the opening and closing of the breech with a small handle, most commonly placed on the right-hand side of the weapon, whereas lever action means a type of firearm action which uses a lever located around the trigger guard area, to load fresh cartridges into the chamber when the lever is worked.

check bellow for the other definitions of Bolt action and Lever action