Cool MateMeaning of Fluid
a liquid; a substance that can flow
In simple words: A substance that can flow, like liquid or gas.
Fluid in a sentence
- body fluids *(= for example, blood)*
- The doctor told him to drink plenty of fluids.
- cleaning fluid
- It's important to replace fluids and salts that are lost during exercise.
- Retaining excess fluid could be a problem.
- They drained a lot of fluid from his lungs.
How to use Fluid
Used to describe things that can change shape easily, such as water or air. In contexts about movement or flexibility, it's appropriate. Avoid using it in very formal writing without defining.
Grammar pattern
standalone adjective
Memory hint
Think of 'fluid' as 'flowing' — imagine water smoothly running down a stream.
Related words
Common mistakes with Fluid
- Confused with 'fluent' in the context of language.
- Using 'fluid' as a noun without specifying the type, e.g. 'the fluid is...' instead of 'the fluid is water.'
- Misunderstanding the word as only referring to liquids.
Fluid appears in
Fluid in other languages
More words like Fluid
- Liquid
- Smooth
- AbolishC1
To formally put an end to a system, practice, or institution.
- AbortionC1
the deliberate ending of a pregnancy at an early stage
- AbsenceC1
the fact of somebody being away from a place where they are usually expected to be; the occasion or period of time when somebody is away
- AbsentC1
not in a place because of illness, etc.
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Frequently asked questions about Fluid
What does Fluid mean?
A substance that can flow, like liquid or gas.
What is the definition of Fluid?
a liquid; a substance that can flow
How do you use Fluid in a sentence?
body fluids *(= for example, blood)*
Can you give another example of Fluid?
The doctor told him to drink plenty of fluids.
What are synonyms for Fluid?
Common alternatives include liquid, flowing, smooth, mutable, unfixed.
What is the opposite of Fluid?
Opposite meanings include solid, rigid, stiff.
What words go with Fluid?
It commonly pairs with excess, amniotic, bodily, drain, drink, lose.
What are common mistakes when using Fluid?
Confused with 'fluent' in the context of language. Using 'fluid' as a noun without specifying the type, e.g. 'the fluid is...' instead of 'the fluid is water.' Misunderstanding the word as only referring to liquids.
How do you pronounce Fluid?
US: /["/ˈfluːɪd/"]/, UK: /["/ˈfluːɪd/"]/. Listen to the audio above to hear native pronunciation.
When should I use Fluid?
Used to describe things that can change shape easily, such as water or air. In contexts about movement or flexibility, it's appropriate. Avoid using it in very formal writing without defining.
What CEFR level is Fluid?
"Fluid" is at C1 level on the CEFR scale.