2 syllables: Meth, ane. Stress on Meth.
METH-ayn
/ˈmɛˌθeɪn/
Methane is pronounced METH-ayn (/ˈmɛˌθeɪn/). It has two syllables (Meth-ane), with the stress on "Meth". Methane is a simple hydrocarbon gas, CH4, composed of one carbon atom bonded to four hydrogen atoms. It is the main component of natural gas and a potent greenhouse gas. Chemically, it is the simplest alkane, with a tetrahedral molecular geometry and a characteristic, relatively high energy content per unit volume.
nounMethane is a simple hydrocarbon gas, CH4, composed of one carbon atom bonded to four hydrogen atoms. It is the main component of natural gas and a potent greenhouse gas. Chemically, it is the simplest alkane, with a tetrahedral molecular geometry and a characteristic, relatively high energy content per unit volume.
How to Pronounce Methane
"Methane is burned to produce heat and electricity in many power plants."
"Scientists measure atmospheric methane levels to monitor climate change."
"The natural-gas industry isolates methane from other hydrocarbons."
Say /ˈmiːˌteɪn/ (MEH-thayn). The first syllable carries primary stress. The 'meth' portion sounds like me with a long E; the second syllable rhymes with 'rain.' For many speakers, it can be heard as /ˈmɛθ.eɪn/ in careful speech, but /ˈmiːˌteɪn/ is standard in most dictionaries. Mouth position emphasizes a fronted long E followed by a diphthong in -ane.
Common errors: 1) Misplacing stress (putting equal stress on both syllables). 2) Pronouncing the second syllable as 'moth-ane' with a hard 'th' rather than the /ð/ or /θ/ variation; many say /ˈmɛθeɪn/. 3) In US English, confusing /ːi/ with a short /ɪ/ leading to /ˈmɪθeɪn/. Correction: stress ME-: /ˈmiː/ and ensure the second syllable uses a clear /eɪ/ diphthong as in 'rain'.
US tends to use /ˈmiːˌteɪn/ with strong long E bite and clear /eɪ/ in second syllable; UK often features a more clipped /ˈmiː.ˌteɪn/ with non-rhoticity but similar vowel qualities; Australian typically shows vowel height variation, with /ˈmiːˌteɪn/ but vowels less centralized and a slight 'ah' quality in the first vowel in some speakers. Across all, final -ine remains /eɪn/; rhoticity affects linking in connected speech.
Challenge comes from the two-syllable rhythm with a long E in the first syllable and a high, rising /eɪ/ in the second. The 'th' component involves a voiceless dental fricative /θ/ or voiced /ð/ in some dialects, which can cause mispronunciation as 'meth-ane' or 'meth-een'. Practice the sequence /m iː/ then /teɪn/, keeping the glide of the diphthong steady and avoiding a clipped /mɛθ/ variant.
A distinctive feature is the rapid transition from the long E in the first syllable to the /eɪ/ diphthong in the second, creating a smooth gliding effect from /iː/ to /eɪ/. Emphasize the 'tee' quality in 'me' and then a clean 'rain' ending. This two-syllable pattern is a key cue for correct pronunciation in scientific and environmental contexts.
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Methane derives from the Greek prefix meth- meaning a methyl group and -ane indicating a simple alkane. The term was coined in the 19th century to describe the simplest member of the alkane family. It was first isolated in 1776 by Alessandro Volta in his gas experiments, but the gas was identified earlier as marsh gas (also called swamp gas) by chemists who observed it bubbling from decomposing organic matter. Over time, as organic chemistry developed, methane was distinguished from other hydrocarbons through its single carbon atom and four hydrogens, its tetrahedral geometry, and its gaseous state at room temperature. In the 20th century, accurate measurements of methane’s global warming potential and its role as a greenhouse gas elevated its scientific and policy importance. The modern chemical formula CH4 and the standard method of synthesis or extraction from natural gas have solidified methane’s place as a foundational hydrocarbon in both energy and environmental science.
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💡 These words have similar meanings to "Methane" and can often be used interchangeably.
🔄 These words have opposite meanings to "Methane" and show contrast in usage.
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Words that rhyme with "Methane"
-ane sounds
-ain sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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