4 syllables: Ther, mo, me, ter. Stress on mo.
thur-MAH-muh-tur
/θɚˈmɑmətɚ/
Thermometer is pronounced thur-MAH-muh-tur (/θɚˈmɑmətɚ/). It has four syllables (Ther-mo-me-ter), with the stress on "mo". Thermometer (noun) is a device that measures temperature, typically consisting of a glass or digital tube with a calibrated scale. It enables readings of environmental or bodily heat. The term combines root elements referring to heat (thermo) and measure (meter).
nounThermometer (noun) is a device that measures temperature, typically consisting of a glass or digital tube with a calibrated scale. It enables readings of environmental or bodily heat. The term combines root elements referring to heat (thermo) and measure (meter).
"The nurse checked the patient’s temperature with a digital thermometer."
"Outdoor readings dropped, so we opened the window to adjust the thermostat and thermometer in the hall."
"He dropped the thermometer into the liquid to monitor the boiling point."
Thermometer is pronounced as /ˈθɜːrməˌmiːtər/ (US) or /ˈθɜː(r)mɒmɪtə/ (UK). The primary stress is on the first syllable THER, with a secondary stress on the MET as part of -meter. Tip: start with the TH sound, move to the stressed ER sound, then glide through -mo- and end with -meter. Listen for the slight reduction in the middle syllable in fast speech.
Common errors include saying /ˈθɛrˌmɒmɪtə/ (wrong vowel in the first syllable) and merging syllables too aggressively, like /ˈθɜːrˈmɒmɪtə/ missing the secondary stress. Another frequent issue is mispronouncing the final -meter as /ˈmiːtər/ instead of /ˈmiːtər/ with a clear -tər. Correct by keeping the ER vowel as in ‘her’ and articulating the middle /m/ crisply before the /ə/ reduced vowel.
In US English, /ˈθɜːrməˌmiːtər/ emphasizes rhotic r after /ˈθɜːr/. UK typically /ˈθɜː(r)mɒmɪtə/ with a more open /ɒ/ in the middle syllable and less rhoticity in some speakers. Australian tends toward /ˈθɜː(r)məˌmɪtə/ with reduced vowel quality in the second syllable and a flatter intonation. The main differences are vowel quality (ɜː vs ɒ), rhoticity presence, and syllable stress slightly shifting in rapid speech.
Key challenges include the sequence of syllables with two 'm' clusters and the mid vowels in the first two syllables. The /ɜːr/ in the first syllable and the /mə/ in the second require precise tongue retraction and a quick schwa transition. The final /tər/ also challenges non-rhotic speakers. Practice by isolating each segment and blending them smoothly, paying attention to the secondary stress on -meter.
Thermometer features a tri-syllabic rhythm with a strong initial stress and a subtle secondary stress on meter. The sequence /θ/ + /ɜːr/ demands a tense, voiced th followed by a rhotic vowel; the middle /mə/ requires a schwa-like sound quickly before a long /iː/ in -meter if spoken as -miːter. This combination—fricative + rhotic + stressed secondary syllable—creates a distinctive cadence you can train with targeted minimal pairs.
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Thermometer derives from the Greek thermos, meaning heat, and metron, meaning measure. The word entered English in the 17th century during the rise of scientific instrumentation, when devices to quantify temperature were being invented and refined. Thermos contributed the heat component, while -meter denotes a measuring instrument, from Greek metron. Early thermometers used alcohol or mercury column tubes to indicate temperature changes; later, digital and wireless variants emerged. The first known use in English documents dates to the 1610s–1620s, paralleling advancements in thermology and physics. Over centuries, the term has become a household staple, expanding to medical, meteorological, and industrial contexts. The evolution reflects broader shifts toward standardization of temperature scales (Celsius, Fahrenheit, Kelvin) and the integration of electronic sensors, while retaining the core idea of a device that measures heat through a graduated instrument. In contemporary usage, thermometer often implies a conventional glass mercury rod or a modern electronic unit, with the suffix -meter repeatedly signaling measurement functionality across science and everyday life.
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💡 These words have similar meanings to "Thermometer" and can often be used interchangeably.
🔄 These words have opposite meanings to "Thermometer" and show contrast in usage.
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Words that rhyme with "Thermometer"
-ter sounds
-her sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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