One syllable: Planck.
plangk
/plæŋk/
Planck is pronounced plangk (/plæŋk/). It has one syllable (Planck), with the stress on "Planck". Planck is a proper noun used chiefly as a surname or in physics to denote the Planck constant, a fundamental physical constant. In everyday speech it can refer to Max Planck, the German physicist, or to related scientific contexts. The term is pronounced with a hard initial stop and a final “k” sound, and it carries scholarly, technical connotations in physics and history of science.
nounPlanck is a proper noun used chiefly as a surname or in physics to denote the Planck constant, a fundamental physical constant. In everyday speech it can refer to Max Planck, the German physicist, or to related scientific contexts. The term is pronounced with a hard initial stop and a final “k” sound, and it carries scholarly, technical connotations in physics and history of science.
- You may mispronounce Planck as /plæn/ or /plæŋ/ without the final /k/. Ensure a firm, unreleased or lightly released /k/ at the end. - Another mistake is inserting an extra vowel after /ŋ/ (e.g., /plæŋə k/). Keep the sequence tight: /plæŋk/. - Some speakers lengthen the vowel before /ŋ/ or vocalize after the /ŋ/, making it sound like ‘plan-ck.’ Practice keeping a short /æ/ sound and immediate /ŋ/ transition. - Lip and tongue positions tend to be too relaxed; you need a brisk lips-to-tongue closure for /p/ and a clear tongue retraction for /ŋ/ before /k/. - Final tip: record yourself to ensure you’re not devoicing the /ŋ/ or blending the /ŋ/ and /k/ into a single sound.
How to Pronounce Planck
"The Planck constant is essential to quantum mechanics."
"Planck proposed a quantum hypothesis in 1900."
"We studied Planck’s work in the modern physics seminar."
Pronounce it as /plæŋk/. Start with the consonant cluster /pl/ (lip contact then release), followed by the velar nasal /ŋ/ (sound like “ng” in “sing”) and ending with the voiceless /k/. The stress is on the single syllable, so it’s a compact, crisp word: PLANCK. Imagine the mouth closing firmly for the final /k/ with the tongue back at the soft palate. For a practical cue, say “plan” with an added nasal /ŋ/ and finish quickly with /k/.
Common errors include pronouncing it as /plæn/ (like ‘plan’ with no final k) or relaxing the final /k/ to a glottal stop. Some speakers insert a vowel before the final /k/ (e.g., /plæŋkɪ/), or substitute /t/ for /k/ due to voiceless stop confusion. The key corrections: keep a clean final /k/ without voicing, ensure the /ŋ/ sound is clearly nasalized between /æ/ and /k/, and avoid adding extra vowels between /ŋ/ and /k/.
In US/UK/AU, the single-syllable structure remains, but vowel quality varies slightly: US often has a slightly tenser /æ/ than UK, with non-rhotic tendencies affecting surrounding words but not the Planck core. The /pl/ onset is similar across all, and /ŋ/ is robust in all three, followed by /k/. Australians may exhibit a crisper /k/ and sometimes a slightly lighter vowel before the nasal. In all accents, the r-lessness of Planck in non-rhotic variants does not apply to this word; it is unaffected by rhoticity as it contains no /r/.
The difficulty lies in the immediate sequence of a strong /pl/ cluster, a velar nasal /ŋ/, and a final voiceless /k/ without any vowel between /ŋ/ and /k/. The /ŋ/ requires a velar-nasal coordination that some speakers time awkwardly with the preceding vowel, and the ending /k/ must be unreleased or released crisply depending on the dialect. Mastery comes from practicing the rapid transition from the nasal to the hard /k/ with no epenthetic vowel.
A practical, unique query is: Is there a subtle syllable boundary in fast speech? The answer: no; Planck is a monosyllable with all segments tightly connected. In rapid speech, you’ll still maintain /plæŋk/ with a quick release from /ŋ/ to /k/. Visualize the mouth finishing the /ŋ/ with the tongue retracted toward the soft palate, then snap the /k/ closed at the soft palate. This keeps the word compact and precise.
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- US: tends to have a slightly tenser /æ/ and a crisp /k/ release; keep the /ŋ/ fully nasalized with the tongue high and back. - UK: may pronounce with a marginally shorter vowel and crisper /k/; maintain non-aspirated onset and a clean /ŋ/. - AU: similar to US/UK but with even more clipped final /k/ and less vowel duration; ensure the /ŋ/ is strong. - IPA references: US /plæŋk/, UK /plæŋk/, AU /plæŋk/. Focus on a strong velar nasal before the hard /k/.
Planck originates from the German surname Planck, most famously associated with Max Planck (1858–1947), the physicist who laid the groundwork for quantum theory. The surname itself likely derives from a geographic or occupational root in German, possibly linked to a place name or to a modifier meaning “bright” or “shining” though historical records are sparse. The term entered scientific lexicon via Max Planck’s groundbreaking 1900 paper introducing the quantum of action, now known as the Planck constant (h). Over time, “Planck” became a unitary symbol in physics (Planck length, Planck time) and a general referent to Planck’s constant in scholarly discourse. First known uses appear in late 19th to early 20th century German scientific literature, gradually appearing in English-language physics texts as quantum theory proliferated. The name itself has since become a staple in physics, maintaining strong associations with foundational principles of quantum mechanics and black-body radiation. Today, “Planck” as a term communicates authority in science writing and education, with the proper noun often used in reference to Max Planck or concepts bearing his name.
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Words that rhyme with "Planck"
-ank sounds
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