10 of the most obscure words only expert Scrabble players know

Check out the final board from a World Scrabble Championship and you might feel like you're reading a foreign language.

You'd only know all those words if, like many Scrabble champions, you'd spent months poring over the dictionary, learning names for plant parts and ancient instruments.

We dug up the words from the last four years of Scrabble championships and highlighted some of the weirdest below. See if you can guess what they mean - we've included the definitions, too.