facts about english language(lexical)

The longest English word:

antidisestablishmentarianism (28 letters)---means opposition to the separation of church and state

floccinaucinihilipilification(29 letters)--meaning the estimation of something as worthless, is the longest non-technical word in the OED. 

pneumonoultramicroscopicsilicovolcanokoniosis (45 letters)--a lung disease, appears to be a semi-serious concoction.

Longest word without a vowel:

symphysy.

Longest word with at most 1 vowel:

glycyphyllin, psychorhythm.

Word with most vowels:

counterrevolutionaries.

Word with most consecutive vowels (5):

cooeeing, miaoued, miaouing, queueing.

Smallest word with all 5 vowels:

eulogia, miaoued, sequoia.

Longest word with only 3 distinct alphabets:

seeresses.

Longest word with only 4 distinct alphabets:

senselessness.

Longest word with no repeated letter:

dermatoglyphics.

Longest word with letters in alphabetical order:

aegilops.

Longest word with letters in reverse alphabetical order:

trollied.

Longest word that can be typed with the right hand alone

(on a qwerty keyboard): phyllophyllin.

Longest word that can be typed with the left hand alone

(on a qwerty keyboard): devertebrated.

Longest word that can be typed using the top row

(of a qwerty keyboard): rupturewort.

Interesting words with the substring 'uu':

continuum, fatuus, menstruum, residiuum, vacuum.

Word with the maximum number of distinct alphabets (16):

 superacknowledgment.

Word with most a's (6):

 taramasalata.

Word with most e's (7):

electrotelethermometer.

Word with most i's (6):

 pericardiomediastinitis.

Word with most o's (6):

 zoologicoarchaeologist.

Word with most u's (5):

untumultous.

Words with four consecutive letters of the alphabet appearing consecutively:

 gymnoplast, superstuff, understuff.

Words with four consecutive letters of the alphabet appearing consecutively in reverse order:

 weaponmaker.

Words with 3 consecutive s's:

 headmistressship, patronessship.

The last word:

zyzzyva.

The longest word in the dictionary containing no letter more than once is "smiley." (There is a mile between the first and last letter.)