2 syllables: air, flow. Stress on air.
ER-floh
/ˈɛɹfloʊ/
airflow is pronounced ER-floh (/ˈɛɹfloʊ/). It has two syllables (air-flow), with the stress on "air". Airflow refers to the movement of air through a device, channel, or system, such as a duct, vent, or engine intake. It describes how air travels from source to destination, including rate, direction, and turbulence. In engineering and speech contexts, airflow is analyzed for efficiency, pressure, and acoustic effects. The term encompasses both natural and forced air movement and is essential in HVAC, aerodynamics, and phonetics discussions.
Airflow refers to the movement of air through a device, channel, or system, such as a duct, vent, or engine intake. It describes how air travels from source to destination, including rate, direction, and turbulence. In engineering and speech contexts, airflow is analyzed for efficiency, pressure, and acoustic effects. The term encompasses both natural and forced air movement and is essential in HVAC, aerodynamics, and phonetics discussions.
"The airflow in the duct was restricted by a clogged filter, reducing efficiency."
"Engineers measured the airflow rate to assess turbine performance."
"In speech science, airflow is important for producing fricatives and plosives with proper loudness."
Pronounce as two morphemes: AIR + FLOW. IPA: US /ˈerfloʊ/, UK /ˈeəfləʊ/, AU /ˈeəflaʊ/ (approx). Start with a stressed first syllable, an open front vowel in US (rhymes with ‘air’) and a long, rounded second syllable. Keep the /r/ pronounced clearly in US; in non-rhotic varieties, the /r/ may be weaker. The second syllable begins with /f/ and ends with a long /oʊ/ (US) or /ləʊ/ (UK/AU). Mouth: lips neutral-to-rounded for /oʊ/, tongue slightly raised toward the alveolar ridge for /r/ in US; for /fl/ begin with the lip-to-teeth contact for /f/ and then /l/ with a light touch to the alveolar ridge. Audio reference: Pronounce.com or Forvo listing for airflow (various accents).
Two frequent errors: (1) Merging into ‘airflow’ with a weak first vowel, saying /ərfloʊ/ instead of /ˈerfloʊ/; ensure primary stress on the first syllable. (2) Silencing or softening the /r/ in American speakers, producing a non-rhotic sound; keep a distinct rhotic onset if you’re aiming for US style. Correction: practice ‘air’ with a crisp /r/ in US; then transition to /floʊ/ with a clear /f/ and long /oʊ/. Also avoid delaying the /l/—let /l/ be light but present. Silky, non-stressed transitions make the word sound like part of a phrase rather than a standalone term.
US: /ˈerfloʊ/ with a distinct rhotic /r/ and a strong first syllable; second syllable features a clear long /oʊ/. UK: /ˈeəfləʊ/ with a centering diphthong in the first syllable and a shorter, schwa-like /ə/ before /ʊ/ in the final; non-rhotic tendency may reduce the /r/. AU: /ˈeəflaʊ/ or /ˈeəfloʊ/ depending on speaker; more vowel mergers and a broader /aʊ/ diphthong in some regions. Overall, rhoticity and vowel quality shift the first syllable vowel and the strength of the /r/; the second syllable remains a long, rounded diphthong in all versions. Listen for the cue of /r/ in US and a more vowel-centered first syllable in UK/AU.
The difficulty lies in balancing a precise first-syllable vowel with a clear ro- phoneme and then smoothly moving to a bilabial /f/ + /l/ cluster and a long /oʊ/ or /əʊ/ ending. The /r/ can be tricky for non-native speakers, especially in non-rhotic varieties where it’s less pronounced. Co-articulation with /f/ and /l/ requires precise tongue placement and airflow control; maintaining a steady airflow through the glottis during the shift from vowel to fricative is essential for natural sounding ‘airflow.’ Mastery comes from practice with minimal pairs and listening shadowing.
No, there are no silent letters in airflow. The word comprises two clear morphemes: air + flow, each with audible segments: /er/ in ‘air’ and /floʊ/ in ‘flow.’ The challenge is not a silent letter but achieving the correct vowel quality and the smooth connection between the two syllables. Emphasize both the /r/ in US or the rhotic absence in UK/AU, and the /f/ + /l/ cluster bridging to the long vowel in the final syllable.
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Airflow derives from air, from Old French air, which itself comes from Latin aura meaning breeze or wind. Flow comes from Old English flōwan, related to German fließen, meaning to move bodily, to stream. The modern compound airflow likely arose in technical fields like engineering and HVAC in the 20th century, where precise airflow measurements were crucial. The term blends the general concept of air with the physical notion of movement, evolving to include quantitative aspects like flow rate (volume per time) and pressure-driven movement. First known uses appeared in engineering manuals and HVAC catalogs as systems needed to quantify how much air moved through ducts and around machines. Over time, airflow has broader applications in aerodynamics, fluid dynamics, and speech science, where the control of air passage affects sound production and acoustic performance.
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💡 These words have similar meanings to "airflow" and can often be used interchangeably.
🔄 These words have opposite meanings to "airflow" and show contrast in usage.
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Words that rhyme with "airflow"
-low sounds
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