ELI5 Onomatopoeias - why are there differences across languages?

ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast

Why are onomatopoeias different in different languages? If the sound is the same, why is it that the word for the sound is different? When was the first Onomatopoeia? Why is the word ‘cliche’ an onomatopoeia?

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Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: masher_oz, drunken_assassin, seductive_cactus, drsjsmith, yoshiboo22, lobsang_ludd, vamosity-cosmic, mrdeathchicken and nkalinos

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