What does "flue" mean?
A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
Flue
/fluː/ adj, noun
adj, noun ·Moderate ·College level
Meaning at a glance
- Primary sense: A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
- Grammar: flue is listed as adj, noun.
- Nearest alternatives: air, blubber, breeze, bubble.
- Useful contrasts: inlet, intake.
- Usage evidence: A number of pollutants are required to be filtered out from the flue gas of power plants before it can be exhausted to the atmosphere.
How to use "flue"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "flue" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "flue" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "flue" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "flue" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "flue" is acting as adj, noun in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "air" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "flue", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
"It has frequently been a subject of inquiry, whether the ancients were acquainted with chimneys, or open fire-places. In the houses discovered at Herculaneum and Pompeii, there are no chimneys; they all appear to have been warmed by furnaces and flues."
- 2 a conduit to carry off smoke wordnet
- 3 An enclosed passageway in which to direct a current of air or other gases along.
- 4 organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip wordnet
- 5 A woolly or downy substance; down, nap; a piece of this. countable, obsolete, uncountable
Show 2 more definitions
- 6 flat bladelike projection on the arm of an anchor wordnet
- 7 In an organ flue pipe, the opening between the lower lip and the languet.
Adjective
- 1 Alternative form of flew (“shallow, flat”). UK, alt-of, alternative, dialectal
Example
"A number of pollutants are required to be filtered out from the flue gas of power plants before it can be exhausted to the atmosphere."
Common questions
What is a synonym for "flue"?
Common synonyms include: air, blubber, breeze, bubble, butter, chaff.
How do you use "flue" in a sentence?
A number of pollutants are required to be filtered out from the flue gas of power plants before it can be exhausted to the atmosphere.
How do you pronounce "flue"?
Pronounced /fluː/.
Etymology
From Middle English flue, flewe (“mouthpiece of a hunting horn”), of uncertain origin. Perhaps a back-formation from Middle English *flews (mistaken as a plural), from Old English flēwsa (“a flow, flowing, flux”). Alternatively, perhaps an alteration of Middle English floute, fleute, flote (“a pipe”), see English flute. Compare also Middle Dutch vloegh (“groove, channel, flute of a fluted column”).