an aircraft without wings that obtains its lift from the rotation of overhead blades
"The chopper hovered silently above the crowd while delivering medical supplies to the remote village."
a butcher's knife having a large square blade
"The old butcher wiped the blood from his chopper before slicing through the tough cut of beef."
A tool for chopping wood; an axe/ax.
"The news reported that a chopper landed on the roof to evacuate the trapped family."
A helicopter.
To travel or transport by helicopter.
"After the storm flooded the bridge, we had to chopper our supplies up to the stranded town."