[ I or T ] If you choke, or if something chokes you, you stop breathing because something is blocking your throat.（使）窒息；（使）哽噎；（使）呼吸困难

[ T ] to make someone stop breathing by pressing their throat with the hands（掐住喉咙）使停止呼吸，使窒息

[ T usually passive ] also choke up to fill something such as a road or pipe, so that nothing can pass through堵塞，阻塞；塞满

[ I ] also choke it informal (usually in sports) to fail to do something at a time when it is urgent, usually because you suddenly lose confidence（通常指在运动中关键时刻因丧失信心而）失败；怯场

a device in a motor vehicle that changes the amount of air going into the engine, allowing more fuel compared to air to go in and therefore making the engine easier to start（机动车上的）阻风门，阻塞门