The hardest word in the English language for non-native speakers?

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This is edited from a TV Show called “Modern Life is Goodish“, by Dave Gorman.
The full, unedited, episode is available on YouTube, here: https://www.youtube.com/watch?v=gZE85L2XHSc

Or you can also currently still see the full episode on its original broadcast channel, here (it is free, but you have to sign up to watch): https://uktvplay.uktv.co.uk/shows/dave-gorman-modern-life-is-goodish/watch-online/6084253178001.  If that link does no longer work, go to “UK TV Play” (https://uktvplay.uktv.co.uk), look for “Dave Gorman’s Modern Life is Goodish” (https://uktvplay.uktv.co.uk/shows/dave-gorman-modern-life-is-goodish) and for Series 3 Episode 3 titled “Ova is Latin.  For Eggs.“.