Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
reduplication is a noun meaning "repetition of the final words of a sentence or line at the beginning of the next". It carries 4 recorded senses.
repetition of the final words of a sentence or line at the beginning of the next
the syllable added in a reduplicated word form
a word formed by or containing a repeated syllable or speech sound (usually at the beginning of the word)
the act of repeating over and again (or an instance thereof)
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for reduplication come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.