Definition of reduplicate in English:

reduplicate

verb

[WITH OBJECT]
  • 1 Repeat or copy so as to form another of the same kind.

    ‘the upper parts of the harmony may be reduplicated at the octave above’
    • ‘This way, you can reduplicate the blend if you ever need to.’
    • ‘Of course it was kind of hard to reduplicate it, it's not like a formula, you know something that happens to you.’
    • ‘Words like that are called reduplicates and some of my favorites (found here, scroll down to the bottom) include dilly-dally, fuddy-duddy, higgledy-piggledy, hurly-burly, and namby-pamby.’
    • ‘The above General Terms and Conditions were not reduplicated in the revised 4 vessel policy; but the case has been argued on the basis that they are properly incorporated.’
    • ‘When you find that perfect blend, you want to be able to reduplicate it, and it's near impossible if you didn't take notes!’
    1. 1.1Repeat (a syllable or other linguistic element) exactly or with a slight change, e.g., hurly-burly, see-saw.
      • ‘Then somehow the bye-part was reduplicated and the less formal version bye-bye was formed - don't ask me why, that's the part I couldn't figure out.’
      • ‘An earlier paper had suggested that the phenomenon of transforming items by moving or reduplicating words might be connected with reactions to incongruity.’
      • ‘Rumah ‘house’, buku ‘book’, and ikan ‘fish’ are among those that can be reduplicated; air ‘water’, nasi ‘rice’, and gula ‘sugar’ cannot be reduplicated.’
      • ‘In two cases English words derive from Latin words in which the infinitive ends in atare and in which the at - is therefore reduplicated in the supine; they are dilatare, to spread out, and natare, to swim.’

Origin

Late 16th century: from late Latin reduplicat- doubled again from the verb reduplicare, from re- again + duplicare (see duplicate).

Pronunciation:

reduplicate

/rəˈd(y)o͞opləˌkāt//rēˈd(y)o͞opləˌkāt/