I think you have misspelled the word "onomatopoeia". (Which would normally be fine – it's just such an important word in your post that I thought you should know.)
To give my post some much-needed useful content, and not look as though I was simply sniping someone's spelling, I may as well share my mnemonic for spelling "onomatopoeia."
It's 12 letters, and there's a sort-of pattern in four groups of three with a rhythm. o-n-o, m-a-t, o-p-o, e-i-a. The first and third parts are like rhyming lines in a poem.
Doh! Thanks. TBH I just pick the first fun polysyllabic word that I figured foreign speakers might find difficult to pronounce. On a different day I may have chosen another word.
