English · Word Candidate

fluid

/ˈfluːɪd/

Proposed by a contributor, not yet supported by evidence.

Also seen as: fluids

Sense 1

Both English Tiếng Việt

Meaning · English

Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma.

Nghĩa · Tiếng Việt

Chất có thể chảy dễ dàng, lấy hình dạng của bình chứa và tuân theo nguyên lý Bernoulli

Machine-translated — suggest a fix

Noun

Examples

An extreme version of vorticity is a vortex. The vortex is a spinning, cyclonic mass of fluid, which can be observed in the rotation of water going down a drain, as well as in smoke rings, tornados and hurricanes.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Both English Tiếng Việt

Meaning · English

A liquid (as opposed to a solid or gas).

Nghĩa · Tiếng Việt

Chất lỏng, trái ngược với chất rắn hoặc khí

Machine-translated — suggest a fix

Noun

Examples

fluid inclusion Petrology, a tiny fluid- or gas-filled cavity in an igneous rock. 1-100 micrometers in diameter, formed by the entrapment of a fluid, typically that from which the rock crystallized.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 3

Both English Tiếng Việt

Meaning · English

Of or relating to fluid.

Nghĩa · Tiếng Việt

Liên quan đến chất lỏng

Machine-translated — suggest a fix

Adjective

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 4

Both English Tiếng Việt

Meaning · English

In a state of flux; subject to change.

Nghĩa · Tiếng Việt

Trong trạng thái thay đổi liên tục

Machine-translated — suggest a fix

Adjective

Examples

Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is s

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “fluid” mean?

Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma.

Is “fluid” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.