One syllable: mold.
/moʊld/
Say it backMold has two common pronunciations and meanings. As a verb or noun, it refers to shaping something into a prescribed form, or to a fungus growth. In both cases, it denotes a form or pattern that shapes, sculpts, or contaminates through growth. The word can also indicate a mold-making tool or device used in manufacturing. Usage varies by context and meaning.
"The carpenter used a clay mold to shape the magazine rack."
"Warm weather caused the dough to mold into a perfect loaf."
"A mold grows on the bread if left out too long."
You pronounce it as one syllable with a long vowel: US /moʊld/, UK /məʊld/ (often closer to /moːld/ in some regions), AU /mɔːld/ or /məʊld/. Place your lips into a rounded shape for the /oʊ/ portion, then finish with the voiced /ld/ cluster. The main tip is keeping the onset strong and not letting the vowel drift into a murmur. If you hear “mould” in British spelling, you’ll still often hear /məʊld/.
Common errors include misplacing the vowel into a short /ɑ/ or /ɒ/ sound (saying /mald/ or /mɔld/ instead of /moʊld/ or /məʊld/), and breaking the /ld/ into separate consonants with a prolonged vowel. To correct: keep the vowel as a diphthong /oʊ/ or /əʊ/ and attach the /l/ and /d/ quickly without a vowel between them. Practice with fast sequencing: /moʊld/ -> /mould/ as in British spelling. Ensure your tongue moves toward the high back position for /oʊ/ and finish with a light but clear /ld/.
In US English, /moʊld/ with a clear, tense /oʊ/ diphthong and rhoticity is straightforward. UK English often yields /məʊld/ with a more centralized initial vowel and potential non-rhoticity depending on regional variety, though /mould/ is common in UK spelling. Australian accents tend to blend toward /mɔːld/ or /məʊld/ with a less pronounced rhoticity and vowel height, influenced by vowel shifting. Overall, the nucleus vowel and the treatment of the /l/ and /d/ are similar, but the starting vowel differs in height and duration.
The challenge is the /oʊ/ or /əʊ/ diphthong in one-syllable words, which many learners compress or mispronounce as a pure /o/ or /ɔ/. Also the /ld/ cluster can be tricky: the /l/ should flow into the /d/ without a strong vowel elision; the tongue should avoid retraction or flaring. Additionally, US vs UK rhoticity and vowel quality can cause subtle misalignments in your intended dialect, especially if you shift from one accent to another.
Is there a silent letter in any sense of 'mold'? No: both the 'm' and the 'ld' are pronounced in both senses. The challenge isn’t a silent letter but balancing the vowel length and the adjacent consonants in a single-syllable word. You’ll hear a sharp attack on the onset consonant and a crisp release of the /ld/ cluster, with the vowel gliding through the diphthong. IPA focus: /moʊld/ or /məʊld/ depending on accent.
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Mold derives from the Old English mold or modl meaning ‘mold, forming, material for shaping,’ related to the Proto-Germanic moldaz. The word originally signified a form or utensil used to shape something, later taking on the sense of the material or substance that takes on a form. By the 15th century, mold also referred to a hollow cavity for casting (as in metalwork). The sense of the word as a growth (fungus) emerged in English due to the idea of something taking shape or forming into a growth pattern, with ‘mold’ used to describe the organism that grows in a defined, moldable environment. The spelling has remained stable while pronunciation shifted regionally; during the Great Vowel Shift, long vowels and rhoticity also influenced regional pronunciations. The earliest uses are documented in Middle English and Old English texts, with “mold” appearing in contexts of forming objects and materials, and later extended to biology and pathology as fungal growth became a common concept in household and industrial settings. Today, mold is used in metallurgy, manufacturing, architecture, and biology, with a distinct dual pronunciation depending on meaning and region.
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💡 These words have similar meanings to "mold" and can often be used interchangeably.
🔄 These words have opposite meanings to "mold" and show contrast in usage.
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Words that rhyme with "mold"
-old sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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