density meaning

density means 'the amount of something in a specific space'.

density :

thickness, concentration

noun

▪ The density of the crowd made it hard to move.

▪ The thickness of the crowd made it hard to move.

▪ We measured the density of the liquid.

▪ We measured the concentration of the liquid.

paraphrasing

▪ compactness – density

▪ mass – concentration

▪ thickness – density

▪ volume – concentration

Pronunciation

density [ˈdɛn.sɪ.ti]

The stress is on 'den' and sounds like 'den-si-tee'.

Common phrases and grammar about density

density - Common meaning

noun
thickness, concentration

Part of Speech Changes for "density"

▪ dense (adjective) – thick or crowded

▪ densely (adverb) – in a thick or crowded way

Common Expressions with "density"

▪ population density – the number of people in an area

▪ high density – a lot in a small space

▪ low density – not much in a space

▪ density of a material – how compact a material is

Important examples of density in TOEIC

Vocabulary examples from the TOEIC test

In TOEIC vocabulary questions, density often relates to the amount of people or things in an area.

▪The city has a high population density.
▪The city has many people in a small area.

Example of a confusing word: intensity (strength or degree)

▪The city has a high population intensity.
▪The city experiences a strong concentration of people.
"Density" refers to the number of people or objects within a specific space, often used in contexts like "population density." It is a noun that describes how crowded an area is. "Intensity," however, refers to the strength or degree of something, such as light or emotion, and does not apply to the number of people in an area. Using "intensity" in the sentence "The city has a high population intensity" is incorrect because it suggests a measure of strength rather than quantity. Therefore, "density" is the correct term.

Grammar examples from the TOEIC test

Density is used as a noun and often shows up in questions about measuring or describing space.

▪The density of the material is high.
▪The material is very compact.

density

Idioms and fixed expressions in TOEIC

population density

'number of people in an area', used in reports or studies.

▪The report shows the population density of the city.
▪The report shows how many people live in the city.

dense as a brick

means 'not smart', used humorously to describe someone.

▪He is as dense as a brick sometimes.
▪He is not very smart sometimes.

Differences between similar words and density

density

,

compactness

differences

Density refers to the amount within a space, while compactness refers to how tightly something is packed.

density
▪The density of the forest is high.
▪The forest is thick with trees.
compactness
▪The compactness of the suitcase is impressive.
▪The suitcase is packed tightly.

density

,

mass

differences

Density is about how much is in a space, while mass is about the amount of matter in an object.

density
▪The density of the liquid is measured.
▪The object weighs 5 kg.
mass
▪The mass of the object is 5 kg.
▪The object weighs 5 kg.

Words with the same origin as density

The origin of density

The word's etymology is not clear.

Word structure

The analysis of the word's composition is unclear.

Words with the same origin

The word's root is unclear or difficult to confirm.

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