density
//ˈdɛnsɪti//
Noun
densitySingular
densitiesPlural
1
The degree of compactness of a substance; the quantity of mass per unit volume.
Water has a higher density than oil, which is why oil floats on water.
2
The quantity of people or things in a given area or space.
This city has a high population density.
3
The quality of being thick, close, or crowded together.
The density of the crowd made it difficult to move through the square.