*1: The most common letter for a word to start with is 's'.
*2: Only two words in current use end in "-gry."
*3: The word 'uncopyrightable' is the longest word in everyday speech that does not use a letter more than once.
*4: The dot over the letters "j" and "i" is called a "superscript dot".
*5: When a comma is placed before the word "and", it is known as either an "Oxford comma", or a "serial comma".
*6: The English "ough" is pronounced 9 different ways. All nine are in the following sentence. "A rough-coated, dough-faced, thoughtful ploughman strode through the streets of Scarborough; after falling into a slough, he coughed and hiccoughed."
*7: 171,476 words are in current use, and 47,156 are out-of-date "obsolete" words.
*8: The average vocabulary of an adult English speaker is around 20,000 words and around 40,000 words in a passive vocabulary.
*9: The shortest complete sentence in English is the following. "I am."
*10: There are three main categories of English. Old English (450-1100 AD), Middle English (1100-circa 1500 AD) and Modern English (since 1500). There have been many other changes within these periods based on location, which have created the different English dialects (ex: American English, Canadian English, Brittish English, etc.)
The longest monosyllabic word in English is the word "strengths", nine letters.
The shortest word using all five vowels in alphabetical order is aerious, from the Latin aerius, meaning airy.
Rhythm is the longest word I'm aware of that contains no true vowels. (Actually that goes to tsktsks.)
English contains words that are longer than the longest German words.
Very long English words are usually left out of dictionaries (for lack of necessity/use and for need of space).