Rundowns meaning : (chiefly with definite article "the") A rough outline of a topic or situation. A defensive play in which the runner is caught between two fielders, who steadily converge to tag the runner out. A Caribbean stew of meat or fish (typically mackerel) with reduced coconut milk, yam, tomato, onion and seasonings. A reduction, e.g. of an activity, or in the size of something, such as a fleet.