To utter with breaks and interruption, in the manner of a person half suffocated.
To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate.
To control or adjust the speed of (an engine).
To breathe hard, as when nearly suffocated.
To cut back on the speed of (an engine, person, organization, network connection, etc.).
To strangle or choke someone.
A valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine.
The lever or pedal that controls this valve.
To remove or clear a block or obstruction from.
In whist, to throw away a high card so as not to interrupt one's partner's long suit.
To free or make available.
To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked).
The removal of a block or blockage.