Pronunciation coach
Fluid
Sounds like
flooid
Tap the speaker to hear the word.
Simple meaning
What does Fluid mean?
A substance that flows.
Dictionary definition
A liquid or gas that can flow; also smooth and able to change.
Example sentences
Fluid in a sentence
easy
Water is a fluid.
medium
The dancer made a fluid motion.
hard
Fluid can describe liquids and gases, or movements and ideas that change smoothly.
Synonyms
Words like Fluid
liquidA substance that flows and takes the shape of its container.
Antonyms
Opposite words
solidA substance that keeps its shape.
opposite ideaA contrasting idea to fluid, depending on context.
Word family
Fluid word family
Base word
fluid
noun
fluids
More than one fluid.
Related words
Explore related words
Quick practice
Try Fluid
Practice 1
What does fluid mean?
Fluid means a substance that flows.
Practice 2
Which word is closest in meaning to fluid?
Liquid is close in meaning to fluid in the right context.
Practice 3
Which word is an antonym of fluid?
Solid contrasts with fluid.
Practice this skill
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Use the dictionary to understand Fluid, then move into short activities matched to the skills on this page.
Learning paths
- Define the Word Hive for word meanings.
- Synonym Search for word choice.
- Context Clue Challenge for sentence clues.
- Buzz Between for homophones and listening.
- Hive Builder for roots, prefixes, and suffixes.