There are many huge lists of the most common words in the English language, but the top-ranked most commonly used word would be "the", quickly followed by "very", "though", and "just".
Well there is one I can think of it has 1,909 letters.It is a term for the formula C1289H2051N343O375S8 it has a tryptophan synthetase a proteien and has a enzyme that has 267 amino acids.
Mispronounced is always mispronounced. There are so many! English speakers are famous for mispronouncing words. A current popular favorite is belovèd, properly pronounced with three syllables, not...
FIRE! Yelling fire will undoubtedly disturb everyone in the vicinity from what they are doing.Thus, it is the most disturbing word. Similarly 'HELP!' or 'STOP!' when yelled would be good candidates...