density

As nouns the difference between vapor and density

is that vapor is cloudy diffused matter such as mist, steam or fumes suspended in the air while density is (physics) a measure of the amount of matter contained by a given volume.

As a verb vapor

is to become vapor; to be emitted or circulated as vapor.

As nouns the difference between hardness and density

is that hardness is the quality of being hard while density is (physics: amount of matter contained by a given volume) A measure of the amount of matter contained by a given volume.

Firmness is a related term of density.

As nouns the difference between firmness and density

is that firmness is the state of being firm; strength; permanence; stability; hardness; resolution while density is (physics) a measure of the amount of matter contained by a given volume.

Solidness is a related term of density.

As nouns the difference between solidness and density

is that solidness is the state or quality of being solid while density is (physics) a measure of the amount of matter contained by a given volume.

As a proper noun fate

is any one of the fates.

As a noun density is

(physics) a measure of the amount of matter contained by a given volume.

Indensity is likely misspelled.

Indensity has no English definition.

As a noun density

is (physics: amount of matter contained by a given volume) A measure of the amount of matter contained by a given volume.

As an initialism gsm

is grams per square metre, (unit for measuring the weight of paper).

As a noun density is

(physics) a measure of the amount of matter contained by a given volume.

As nouns the difference between density and firm

is that density is (physics) a measure of the amount of matter contained by a given volume while firm is (uk|business) a business partnership; the name under which it trades.

As an adjective firm is

steadfast, secure, hard (in position).

As a verb firm is

to make firm or strong; fix securely.