Periods are most commonly found at the end of
sentences.  However, they have other uses.  Periods can
be used in the following ways:


Signal the End of a Complete Sentence
  • The dog runs fast.
  • The boys studied mathematics.


Initials
  • J.P. Franklin
  • I.M. Pei

Abbreviations and Acronyms
  • Y.M.C.A.
  • U.S.A.
  • P.E.T.A.
  • Dr.
  • Mr.
  • Mrs.
Business English
 

Periods