To stop (an event, action, or process) or to slow it down.
To cease to perform one's current activity or to decrease one's level of activity.
To decelerate; to slow down.
To put off; to postpone.
To keep delaying; to continue to hinder; to prevent from progressing.
Retardation; delay.
A slowing down of the tempo; a ritardando.
A person or being who is extremely stupid or slow to learn.