5 exercises spotting silent letters in common technical vocabulary.
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1 / 5
Which letter is SILENT in the word "subtle" (sometimes seen in algorithm descriptions)?
In subtle /ˈsʌtl/ the b is silent: it is pronounced "SUT-l", rhyming with "shuttle". The b is a historical spelling artefact and is never sounded. Compare the related word "subtlety" /ˈsʌtlti/ — still no b sound. Do not say "sub-tul". Silent letters are common in English and trip up learners reading documentation aloud; "subtle bug" is "SUT-l bug". Other words with a silent b include "debt", "doubt", "thumb" and "comb" — the b sits silently after m or before t.
2 / 5
How is "queue" pronounced — and which letters are effectively silent?
Queue is pronounced simply /kjuː/ ("kyoo") — identical to the letter "Q". The four letters "ueue" after the initial "q" are effectively silent; only "qu" produces sound. This is famously one of the most silent-letter-heavy words in English. So "message queue" is "message kyoo", and "queue the job" is "kyoo the job". Do not attempt to pronounce every vowel ("kwe-we-we"). The verb forms "queued" /kjuːd/ and "queuing" /ˈkjuːɪŋ/ keep the same compact "kyoo" core.
3 / 5
In "column" (as in a database column), which letter is silent?
In column /ˈkɒləm/ the final n is silent: it is pronounced "COL-um", ending in an "m" sound. The "-mn" combination drops the n at the end of a word (compare "autumn", "hymn", "solemn"). So "database column" is "database COL-um". Interestingly, when the word takes certain suffixes the n returns: "columnar" /kəˈlʌmnə/ does sound the n. But the bare word "column", which you say constantly in SQL discussions, ends in /m/ with a silent n.
4 / 5
Does the word "debug" contain any silent letters?
Debug /diːˈbʌɡ/ has no silent letters — it is a transparent compound of the prefix "de-" plus "bug", and every letter is sounded: "dee-BUG". This contrasts with words like "debt" /det/ (silent b) or "design" (whose g is sounded, unlike "sign"). It is a useful reminder that not every word with tricky spelling hides a silent letter; "debug", "debugger" and "debugging" are all fully pronounced. Stress falls on the second syllable: de-BUG, de-BUG-ger.
5 / 5
In "design", is the letter "g" silent or pronounced?
In design /dɪˈzaɪn/ the g is silent: it is said "de-ZINE", rhyming with "shine". The "gn" cluster at the end of a syllable drops the g (compare "sign", "align", "resign", "campaign"). However, when a vowel suffix follows, the g often reappears: "designate" /ˈdezɪɡneɪt/ and "signature" /ˈsɪɡnətʃə/ do sound the g. In everyday tech speech though, "UI design", "system design" and "designer" all use the silent-g "de-ZINE / de-ZINE-er" pronunciation.