Practicing abbreviations is another use for SpellingCity.  SpellingCity now includes some abbreviations for titles, measurements, geographic terms, for the months of the year, and for the days of the week.

Some of the Abbreviations on SpellingCity.com
Titles:  Dr., Mr., Mrs., Pres.
Measurements: pt., qt., oz., meg
Geographic: Rd, St., Mtn.,
Misc.: vs., mo., ed., inc.