V/STOL is an acronym for Vertical/Short Take-Off and Landing. V/STOL aircraft can take-off or land vertically or on short runways. The Hawker Siddeley Harrier is perhaps the most famous production V/STOL airplane.
V/STOL has been replaced by STOVL in popularity because it reduces the amount of energy required to lift a fully laden aircraft from the ground.
STOL - Short Take-Off and Landing STOVL - Short Take-Off, Vertical Landing VTOL - Vertical Take-Off and Landing (or VTOVL) VTOHL - Vertical Take-Off, Horizontal Landing V/STOL - Vertical/Short Take-Off and Landing STOBAR - Short Take Off But Arrested Recovery