5 exercises on identifying and correctly pronouncing silent letters in technical words.
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Which letter is silent in "pneumatic" (as in pneumatic tube systems or pneumatic actuators)?
In pneumatic, the initial "p" is silent. It is pronounced "nyoo-MAT-ik" /njuːˈmætɪk/ (British) or "noo-MAT-ik" /nuːˈmætɪk/ (American) — three syllables, stress on "MAT." The "pn" cluster comes from Greek; English drops the /p/. So "a nyoo-MAT-ik conveyor", "nyoo-MAT-ik pressure." Other silent-p words: "psychology," "pterodactyl."
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Which letter is silent in "mnemonic" (memory aid or mnemonic device in computing)?
In mnemonic, the initial "m" is silent. It is pronounced "ni-MON-ik" /nɪˈmɒnɪk/ — three syllables, stress on "MON." The "mn" is a Greek cluster; English pronounces only the "n." So "create a ni-MON-ik for the error codes", "a ni-MON-ik device." Related word: "mnemonics" (ni-MON-iks). The silent-m pattern appears only in words from Greek.
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Which letter is silent in "paradigm" (as in "programming paradigm")?
In paradigm, the final "g" is silent. It is pronounced "PAIR-uh-dyme" /ˈpærədaɪm/ — three syllables, stress on "PAIR," ending with the /aɪm/ diphthong. So "a functional programming PAIR-uh-dyme", "shift the PAIR-uh-dyme." Do not say "PAIR-uh-dig-m." The "-gm" ending is a Greek pattern (cf. "diaphragm," "phlegm") where the "g" is silent.
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Is the "b" in "debt" (technical debt) pronounced?
In debt (as in "technical debt"), the "b" is silent. It is pronounced "det" /dɛt/ — one syllable, rhyming with "set," "net," "get." So "accumulate technical DET", "pay down the DET." The "b" was inserted in the 16th century to reflect the Latin root "debitum," but it has never been pronounced in English. Do not say "debt" with a /b/ sound.
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Which letters are silent in "algorithm" — and how do you stress it?
In algorithm, no letters are silent — every part is pronounced: "AL-go-rith-um" /ˈælɡərɪðəm/ — four syllables, stress on "AL." The "th" is the voiced /ð/ (as in "the," "this"), not /θ/ (as in "think"). The "go" reduces to /ɡər/ in natural speech. So "design an efficient AL-go-rith-um", "the AL-go-rith-um complexity." Many learners omit the fourth syllable; keep all four: AL-go-rith-um.