Reduplicative is a term that refers to words or phrases that repeat a certain sound or syllable. This phenomenon is frequently used to convey emphasis or to create rhyming or rhythmic effects in language. Synonyms for reduplicative include repetition, duplication, doubling-up, and echoing. Common examples of reduplication in language include the words "flip-flop," "tick-tock," "chit-chat," and "ping-pong." Reduplication can also be used to create new words by combining existing ones, such as "mimimic" or "choo-choo." While reduplication is most commonly used in spoken language, it can also be found in written literature and poetry.