For no real reason, here are some words I like.
tmesis – when you insert a word into another word. Like ‘a-whole-nother’. Often used with abso-bloody-lutely and other colourful inserts. It’s one of those ‘I never knew there was a word for it’ words, which appeals to me. That and the spelling is just a little bit obscure!
awkward – Awkward and its derivatives are the only words in the English language which have ‘wkw’ in them!
facetious – the shortest word in English which has the vowels in the right order.
forty – the only number in English which has its letters in alphabetical order. (pause while you stop and spell a bunch of numbers in your head)
Contribution from my daughter – supercalifragilisticexpialidocious. ‘Nuff said!