The Period: The Period (#2)

One very common and important punctuation mark
( . ) looks like a small, dark circle. When this mark is
used with numbers, it's called a point. When it's used
in e-mail and WWW addresses, it's called a dot. In
other situations, it's called a period.

In American English, there are many common uses
for the period. One is for abbreviations of titles,
for example

personal titles

professional titles

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Special Notes