Gregory Isaacs dies Reggae legend Gregory Isaacs has died after a battle with cancer. Isaacs, who was 59 years old, died on Monday morning at his home in London where he spent part of his time.
Sagacity is the quality of being wise or having good judgment. An example of sagacity is when a person refuses to get in the car with someone who has been drinking. sagacity. pl. sagacity. The quality of being discerning, sound in judgment, and farsighted; wisdom.
Definition. 1  A megacity is defined by the United Nations as a metropolitan area with a total population of more than 10 million people. Some definitions also set a minimum level for population density (at least 2,000 persons/square km).