What is the hardest noun to spell in English dictionary?

There isn't a single "hardest" noun to spell in the English dictionary, as difficulty is subjective and depends on individual spelling skills and knowledge. However, some nouns are notoriously challenging due to their unusual spellings, silent letters, and uncommon letter combinations.

Here are a few examples of difficult-to-spell nouns:

* pneumonoultramicroscopicsilicovolcanoconiosis: This is the longest word in the English dictionary and is a lung disease caused by inhaling very fine silica dust.

* floccinaucinihilipilification: This word means "the act of estimating something as worthless".

* scherenschnitte: This is a German word for a paper-cutting art form.

* queue: This word is often misspelled as "que."

* Wednesday: This word is challenging because of the "W" and "d" combination.

* rhythm: This word is tricky due to its silent "h" and the "th" combination.

Ultimately, the "hardest" noun to spell for you will depend on your individual strengths and weaknesses.