ik-STEN-shuhn
/ɪkˈstɛnʃən/
extension is pronounced ik-STEN-shuhn (/ɪkˈstɛnʃən/). Extension refers to the act of extending or drawing out something in length or size, or the part of a structure that lies beyond a base or main body. It can denote a continuation (as in an extension of a deadline) or a physical projection (a limb or wing). In grammar, it can imply an add-on element or an elongated form. The term often implies increase, expansion, or additional reach.
Extension refers to the act of extending or drawing out something in length or size, or the part of a structure that lies beyond a base or main body. It can denote a continuation (as in an extension of a deadline) or a physical projection (a limb or wing). In grammar, it can imply an add-on element or an elongated form. The term often implies increase, expansion, or additional reach.
"We requested an extension on the deadline to complete the project."
"The extension cord reaches from the outlet to the far corner of the room."
"The new extension of the building added much-needed office space."
US: /ɪkˈstenʃən/; UK: /ɪkˈstenʃən/; AU: /ɪkˈstenʃən/. Stress lands on the second syllable, “TEN,” with a clear /tɛn/ vowel. Start with a light initial ‘ek’ before the stressed syllable, then end with ‘shən’ where /ʃ/ is a soft blend and the final /ən/ reduces in fast speech. Imagine saying “ick-sten-shun.” Audio references like Cambridge or Forvo can provide native poses.
Common errors: (1) Reducing the middle /ˈtɛn/ to a schwa, making it "e-tion"; (2) Misplacing stress as ex-TEN-sion in some hurried speech; (3) Slurring the /ʃ/ into a softer /s/ or not fully pronouncing /ən/. Correction: pronounce the stressed syllable clearly /ˈsten/ or /ˈstenʃən/ with a crisp /t/ before /ɛn/ and lift the /ʃ/ fully; end with a light /ən/ by relaxing the jaw. Practice with slow, exaggerated enunciation, then normalize.
US: /ɪkˈstenʃən/, rhotic /ɪkˈstenʃən/ with a clear /ɹ/ in broader words but not in extension. UK: /ɪkˈstenʃən/ with non-rhoticity typically; Australian: /ɪkˈstenʃən/ similar to UK, but vowel quality may be more centralized and the /t/ can be aspirated differently. Consistent /ˈten/ is maintained, but flapping may occur in some US dialects when between vowels in rapid speech.
The challenge lies in the cluster /kˈsten/ where the /k/ and /st/ needs tight timing and the sequence /st/ blends into a /stə/ before /ʃən/. Also, /ɪ/ in the initial may be shortened in fast speech, and /ən/ at the end can reduce. Focus on sustaining the /t/ firmly, ensuring the /st/ cluster is crisp, and avoid tensing the jaw near /ʃən/. Consistent practice with minimal pairs helps.
There are no silent letters in extension, but the final -sion is pronounced as /ʃən/, not /sən/ or /ʒən/. The key is the /st/ cluster preceding /ən/; the /t/ and /s/ are two distinct articulations in quick succession. You’ll often hear a slight smoothing of /ʃ/ and a reduced final vowel in fluent speech, but do not omit /ʃ/.
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Extension originates from the Latin word extendere, meaning to stretch out. The Latin root extend- comes from ex- (out) + tendere (to stretch). The term evolved in English via Old French estension and Medieval Latin extensio, maintaining the core sense of lengthening or spreading outward. In architectural and mathematical contexts, extension has long referred to the act of prolonging a structure or function. The modern sense of “the act of extending” and “an added part” emerged in Early Modern English, with use attested in legal and technical texts as far back as the 16th century. Over time, extension broadened to everyday usage, including software extensions, calendar extensions, and body extension concepts, while preserving the core idea of extending reach or duration. First known uses appear in contexts describing lengthening a deadline or adding on to a building, with widespread adoption in the 17th–19th centuries as industrialization and formal planning proliferated new forms of extension (railway extensions, time extensions, etc.).
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💡 These words have similar meanings to "extension" and can often be used interchangeably.
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Words that rhyme with "extension"
-ion sounds
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