There is a site called “My Favorite Word” which contains a range of words submitted by readers and explanation of why those words are the favorite word for them. It is pretty interesting to read. An example:
Because it is the only word that describes my fussy, particular dog who thinks he owns the world and that everything, I mean everything, should be done to suit him. For example: laps and blankets should be arranged exactly the way he likes them. The weather should be neither too cold, too warm, nor too wet. The walk should go in the direction he wants to go, etc. And the funniest part is that if he doesn't get his way, he just looks offended, like someone has just insulted his dignity.
What is your favorite word?