This morning I received a email about the WORD "UP".  Looking in the dictionary, just the letter "U" became interesting. :)
An amazing 2 letter English word.
A reminder that one word in the English language that can be a noun, verb, adjective, adverb and preposition. 
Vern's Webster Concise 1966 page on "UP".  The pretext "UN" shows up.
IN Vern's  "Rogets-Thesaurus-1978"  The word "USE" comes up.
IN Vern's  "Random-House-2001"  The pretext "ur" comes up.
It's UP to you to PASS this ON!
It's easy to understand UP, meaning toward the sky or at the top of the list, but when we awaken in the morning,
why do we wake
At a meeting, why does a topic come UP?  Why do we speak UP, and why are the officers UP for election and
why is it
UP to the secretary to write UP a report?  We call UP our friends, brighten UP a room,
UP the silver, warm UP the leftovers and clean UP the kitchen.  We lock UP the house and fix UP the old car.
At other times, this little word has real special meaning.   People stir UP trouble, line UP for tickets,
UP an appetite, and think UP excuses.
To be dressed is one thing but to be dressed UP is special.     
And this UP is confusing:  A drain must be opened UP because it is stopped UP.
We open UP a store in the morning, but we close it UP at night. 
We seem to be pretty mixed
UP about UP!
To be knowledgeable about the proper uses of UP, look UP the word UP in the dictionary. 
 In a desk-sized dictionary, it takes
UP almost 1/4 of the page and can add UP to about thirty definitions.
If you are UP to it, you might try building UP a list of the many ways UP is used.
 It will take
UP a lot of your time, but if you don't give UP, you may wind UP with a hundred or more.
When it threatens to rain, we say it is clouding UP.  When the sun comes out, we say it is clearing UP
When it rains, the earth soaks it
UP.  When it does not rain for a while, things dry UP
One could go on and on, but I'll wrap it
UP, for now . . . my time is UP!
Oh . . . one more thing:  What is the first thing you do in the morning and the last thing you do at night?     
  P   !     
Did that one crack you UP?     
Now I'll shut UP!