An aircraft that is borne along by one or more sets of long rotating blades which allow it to hover, move in any direction including reverse, or land; and typically having a smaller set of blades on its tail that stabilize the aircraft.
A powered troweling machine with spinning blades used to spread concrete.
A whirling trick performed with devil sticks.
A dragonfly.
The winged fruit of certain trees, such as ash, elm, and maple.
To rotate like a helicopter blade.
To overprotect one's children, as a helicopter parent does.
To travel by helicopter.
To transport by helicopter.
A balloon-shaped aircraft whose bag is inflated with hot air; it carries passengers and crew in a gondola slung underneath.