C1noun2K

Density

UK /["/ˈdensəti/"]/US /["/ˈdensəti/"]/

Definition

the quality of being dense; the degree to which something is dense

In simple words: How heavy something is for its size.

Examples

The population density in this city is very high.
low-density forest
an average density of 2.4 people per hectare
the density of a gas
similar stars of the same mass and density
Vitamin D deficiency causes a loss of bone density.

Usage notes

Used in science and everyday conversation; suitable for discussing materials or substances. Avoid using in informal contexts unless talking about a substance in a casual way.

Grammar pattern

standalone concept

Memory hint

Think of 'dense' as 'heavily packed' to remember density.

Collocations

high
low
average
calculate
determine
estimate
change
vary
increase
high
low
average
calculate
determine
estimate
change
vary
increase

Synonyms

heaviness
concentration
compactness

Antonyms

lightness
thinness

Common mistakes

Confused with 'mass' - density relates mass to volume.
Omitting units when discussing density (e.g., grams per cubic centimeter).