The longest one-syllable word in the English language is
"screeched."
"Dreamt" is the only English word that ends in the letters "mt".
 The word "set" has more definitions than any other word in the
English language.
 "Underground" is the only word in the English language that begins and ends
with the letters "und."
 There are only four words in the English language which end
in"-dous": tremendous, horrendous, stupendous, and hazardous.
 The longest word in the English language, according to the Oxford
 English Dictionary, is pneumonoultramicroscopicsilicovolcanoconiosis.  The
only
other word with the same amount of letters is
 microscopicsilicovolcanoconioses, its plural.
 The longest place-name still in use is
matawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwenakitnat
ahu, a New Zealand hill.
 There is a seven letter word in the English language that contains
ten words without rearranging any of its letters, "therein": the,
there,he,in, rein, her, here, ere, therein, herein.
 "Stewardesses" is the longest word that can be typed with only the left
hand.
 To "testify" was based on men in the Roman court swearing to a
 statement made by swearing on their testicles.
 The combination "ough" can be pronounced in nine different ways.
The following sentence contains them all: "A rough-coated, dough-faced,
thoughtful ploughman strode through the streets of Scarborough;
after falling into a slough, he coughed and hiccoughed."
 The only 15 letter word that can be spelled without repeating a
letter is uncopyrightable.
 Facetious and abstemious contain all the vowels in the correct
order, as does arsenious, meaning "containing arsenic."
The word "Checkmate" in chess comes from the Persian phrase "Shah Mat,"
which means "the king is dead."
 Los Angeles's full name is "El Pueblo de Nuestra Senora la Reina de
losAngeles de Porciuncula" and can be abbreviated to 3.63% of its size"L.A."
 The symbol on the "pound" key (#) is called an octothorpe.
 The dot over the letter 'i' is called a tittle.