4 syllables: du, pli, ca, tion. Stress on ca.
/duːplɪˈkeɪʃən/
Say it backDuplication refers to the act or process of making an exact copy of something. In formal contexts it can also mean the result or instance of such copying, often used in technical, biological, or data-related fields. The term emphasizes replication and redundancy, and is commonly used in science, manufacturing, and information technology discussions.
"The duplication of the dataset ensured that no single file was lost during transfer."
"Researchers noted a duplication error in the gene sequence."
"We need to check for duplication of efforts across departments to improve efficiency."
Pronounce as /ˌduː.plɪˈkeɪ.ʃən/ (US: /ˌduː.plɪˈkeɪ.ʃən/; UK: /ˌdjuː.plɪˈkeɪ.ʃən/); place primary emphasis on the third syllable. Start with a long /uː/ in the first syllable, a light /plɪ/ in the second, and the stressed /ˈkeɪ.ʃən/ in the third, followed by a soft, unstressed final /ən/.
Common errors: (1) Misplacing stress on the wrong syllable, often stressing -li- instead of -ca-; (2) Prolonging the second syllable incorrectly by making /pli/ into a strong cluster; (3) Slurring the /keɪ/ diphthong into /ke/ or /keɪɪ/. Correction: keep /ˌduː.plɪˈkeɪ.ʃən/ with clear /plɪ/ and a crisp /ˈkeɪ.ʃən/, practicing with minimal pairs.
In US, you’ll hear /ˌduː.plɪˈkeɪ.ʃən/ with a rhotic, pronounced /r/ absent in this word. UK often uses /ˌdʒuː/ or /ˌdjuː/ onset depending on speaker, and may be less rhotic, but within Context, still /ˈkeɪ.ʃən/. Australian variants align with UK rhotics but maintain clear vowel quality, with similar stress.
Two main challenges: the multi-syllabic structure and the /pl/ cluster. The /duː/ or /djuː/ onset can be tricky when followed by /pl/; keeping the /pl/ light and not breaking the sequence helps. The stressed /keɪ.ʃən/ requires you to articulate the long /eɪ/ and the final unstressed /ən/ smoothly; practice helps you maintain rhythm and avoid a clipped ending.
No letters are technically silent in standard pronunciation. All letters contribute to syllable and phoneme structure: /ˌduː.plɪˈkeɪ.ʃən/. The challenge lies in the placement of stress and the diphthongal /eɪ/ in the third syllable, not in silent letters.
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Duplication comes from the late Latin duplicatio, from duplex, duplic- meaning ‘double, twofold.’ The Latin root duplex itself derives from the combination of the prefix du- (two) and plicare (to fold). The English adoption reflected the sense of folding or doubling one thing to obtain a twin or copy. The word entered English in the 17th century with meanings aligned to duplicating or doubling in mathematics and document copying. Over time, it broadened to include the technical act of creating an exact replica in biology (gene duplication), information technology (data duplication), and manufacturing (product duplication). The suffix -tion marks a noun of action or condition. First known use appears in early modern scientific discourse where precise replication and copying procedures became critical to experiments and data integrity.
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Help others use "duplication" correctly by contributing grammar tips, common mistakes, and context guidance.
💡 These words have similar meanings to "duplication" and can often be used interchangeably.
🔄 These words have opposite meanings to "duplication" and show contrast in usage.
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Words that rhyme with "duplication"
-ion sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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