population

noun

1. The people living within a political or geographical boundary.“The population of New Jersey will not stand for this!”
2. (by extension) The people with a given characteristic.“India has the third-largest population of English-speakers in the world.”
3. A count of the number of residents within a political or geographical boundary such as a town, a nation or the world.“The town’s population is only 243.”
4. A collection of organisms of a particular species, sharing a particular characteristic of interest, most often that of living in a given area.“A seasonal migration annually changes the populations in two or more biotopes drastically, many twice in opposite senses.”