Definition:
Reduplication is a morphological process in which all or part of a base form is copied (reduplicated) and attached to create a new word with a different or modified meaning. Unlike affixation, the “affix” in reduplication is not a fixed form but a copy of the base itself. Reduplication can be full (the entire base is repeated: Malay rumah-rumah [house-RED] = “houses”) or partial (only a portion is copied: Tagalog ma-ganda ? magandá [beautiful], mag-ganda-ganda [somewhat beautiful]). Reduplication expresses semantic functions including plurality, distribution, intensity, iteration, diminution, and approximation across hundreds of languages.
Full vs. Partial Reduplication
Full reduplication: The entire word is copied:
| Language | Form | Meaning |
|---|---|---|
| Malay/Indonesian | rumah (house) ? rumah-rumah | houses (plural) |
| Tagalog | bili (buy) ? bili-bili | keep buying/repeatedly buy |
| Turkish | yavas (slow) ? yavas yavas | slowly, gradually |
| Japanese | toki-doki (time-time) | sometimes, from time to time |
| Mandarin | kàn (look) ? kàn kàn | take a look (diminutive/tentative) |
Partial reduplication: Only a portion (usually onset + vowel) is copied:
| Language | Example | Function |
|---|---|---|
| Tagalog | du-dumating (RED-come-FUT) | future aspect (will be coming) |
| Sanskrit | da-da-ti (RED-give) | perfect aspect |
| Haida | ka- + onset + base | plural |
Semantic Functions of Reduplication
Reduplication conveys different meanings depending on language and context:
| Function | Language Example |
|---|---|
| Plurality/distributive | Malay: mama-mama (mothers) |
| Perfectiveness/completion | Indonesian: tulis-menulis (doing writing) |
| Iteration/repetition | Tagalog: kain-kain (keep eating) |
| Intensity/augmentation | Bahasa Indonesia: besar-besar (very big things) |
| Approximation/diminution | Mandarin: kàn kàn (just a look) |
| Cross-categorial derivation | Tagalog: bili ? buying/commerce |
Reduplication in English
English has limited but productive informal reduplication:
- Rhyming reduplication: hanky-panky, itsy-bitsy, hodge-podge, namby-pamby
- Contrastive focus reduplication: “Did you WANT to talk, or talk-TALK?” — where the reduplication emphasizes prototypical, full reference
- Shm-reduplication (Yiddish-influenced): “Fancy-shmancy, rules-shmules” — dismissive register
Reduplication and L2 Acquisition
Reduplication is relatively easy to acquire for learners of languages with it because the form is entirely predictable from the base. However, learners must:
- Learn which semantic functions reduplication signals in the TL (these vary)
- Learn whether full or partial reduplication applies (can require syllable structure knowledge)
- Learn which word classes undergo reduplication (not all do in every language)
History
Reduplication has been analyzed in typological linguistics since Jespersen (1922) noted its cross-linguistic productivity for expressing plurality and iteration. Phonological analysis of reduplication was formalized by Marantz (1982) and McCarthy & Prince (1986, 1995), who proposed that reduplication is an affix with the morphological requirement to be phonologically identical to its base — the first formal account of how the “copy” requirement is enforced.
Common Misconceptions
- “Reduplication is just repetition for emphasis” — Reduplication is a formal grammatical process with rule-governed functions; it’s not simply repeating for drama
- “English doesn’t have reduplication” — English has informal, colloquial reduplication patterns, though far more limited than in Austronesian or Southeast Asian languages
Criticisms
- McCarthy & Prince’s Correspondence Theory account of reduplication is complex and debated; alternative accounts (Phonological Copy Theory, Optimality Theory) compete
Social Media Sentiment
Reduplication is a popular linguistics curiosity topic; the English “talk-talk” or “tired-tired” examples often circulate in linguistic discussions online and in linguistics introductory courses. Last updated: 2026-04
Practical Application
- For learners of languages with productive reduplication (Malay, Indonesian, Tagalog, Mandarin): explicitly teach the semantic mapping between reduplicated form and its functions — don’t assume learners will infer it without instruction
- For language curious learners: reduplication is an excellent entry point to morphological typology
Related Terms
See Also
Research
- McCarthy, J., & Prince, A. (1995). Faithfulness and reduplicative identity. In J. Beckman, L. Walsh Dickey, & S. Urbanczyk (Eds.), Papers in Optimality Theory (pp. 249–384). GLSA. — Formally accounts for reduplication via correspondence between input and copy.
- Marantz, A. (1982). Re reduplication. Linguistic Inquiry, 13(3), 435–482. — Foundational generative analysis treating reduplication as an affix.
- Rubino, C. (2005). Reduplication: Form, function and distribution. In B. Hurch (Ed.), Studies on Reduplication. Mouton de Gruyter. — Typological survey of reduplication across the world’s languages.