3 syllables: Fi, la, ment. Stress on Fi.
FIL-uh-muhnt
/ˈfɪləmənt/
Filament is pronounced FIL-uh-muhnt (/ˈfɪləmənt/). It has three syllables (Fi-la-ment), with the stress on "Fi". Filament is a slender, threadlike structure or fiber, especially one that conducts light or heat or carries a signal in devices. In science and industry, it refers to a fine, thread-like element in lamps, electronics, or biological contexts. The term emphasizes a narrow, elongated strand that forms part of a larger assembly or system.
nounFilament is a slender, threadlike structure or fiber, especially one that conducts light or heat or carries a signal in devices. In science and industry, it refers to a fine, thread-like element in lamps, electronics, or biological contexts. The term emphasizes a narrow, elongated strand that forms part of a larger assembly or system.
How to Pronounce Filament
"The microscope revealed a delicate filament stretching between two cells."
"A small filament of light traced the path of the fiber optic cable."
"The candle’s wick is a cotton filament that burns steadily when lit."
You say FIL-i-ment, with primary stress on the first syllable. IPA: US ˈfɪləmənt, UK ˈfɪləmənt, AU ˈfɪləmənt. Start with the F sound, then a short I as in 'fill,' then a schwa in the second syllable, and finish with /mɛnt/ or /mənt/ depending on accent. Keep the first vowel bright but short, and reduce the middle vowel to a quick schwa. Practice by saying ‘fill’ + ‘a’ + ‘ment’ in quick succession, then link smoothly into the full word.
Common errors: (1) pronouncing the second syllable as a full vowel instead of a schwa, saying ‘FIL-LEE-ment’ or ‘FILL-uh-ment.’ Correction: reduce the second syllable to a quick /ə/ and keep the ‘l’ light. (2) Misplacing stress as FIL-uh-ment or fi-LA-ment; correction: place primary stress on the first syllable: FIL-uh-ment. (3) Over-articulating the final ‘ment’ as /ment/ with a heavy ‘e’; correction: keep final syllable unstressed and compact: /mənt/.
US and UK share the primary stress on the first syllable: /ˈfɪləmənt/. In some UK varieties, the second syllable’s vowel can be closer to /ə/ or reduced more; Australians often have a slightly flatter vowel in the first syllable and may voice the final /t/ more crisply, but generally keep /ˈfɪləmənt/. Across accents, rhotics don’t alter the core syllables, but consonant release and vowel quality may feel lighter or tenser depending on regional norms.
The challenge lies in the rapid transition from the stressed syllable to a reduced second syllable, with a subtle schwa vowel that is easy to over-articulate. The sequence /ˈfɪlə-/ requires smoothing the /l/ and the vowel reduction, and then finishing with /mənt/ which can easily drift toward /ment/ if the final consonant is overemphasized. Practicing minimal pairs helps stabilize the middle vowel and final consonant timing.
A unique factor is the clear distinction between the first syllable /fɪ/ and the reduced second syllable /lə/ before the /mənt/. Unlike words with a strong second syllable, fil-ament benefits from a quick, almost syllabic 'l' link into the schwa, creating a seamless four-phoneme flow: /fɪ-lə-mənt/. This rhythmic link helps ensure the word sounds natural in connected speech.
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Filament comes from Latin filare, meaning to thread or beilge, and filum meaning thread. The English noun filamento appeared in the 16th–17th centuries, with early usage in anatomy and botany to describe threadlike structures. In the late 19th and early 20th centuries, with advances in electricity and optics, filament gained prominence in describing the thin conducting wire in gaseous discharge lamps and incandescent bulbs. The word’s meaning expanded to include any fine threadlike component within machines or biological tissues. First known use in English records is around the 1600s in botanical texts, with industrial adoption in the nineteenth century as technology demanded precise terms for threadlike elements that perform a functional role in devices and organisms.
💡 Etymology tip: Understanding word origins can help you remember pronunciation patterns and recognize related words in the same language family.
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💡 These words have similar meanings to "Filament" and can often be used interchangeably.
🔄 These words have opposite meanings to "Filament" and show contrast in usage.
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Words that rhyme with "Filament"
-ent sounds
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