An abbreviation is a shortened form of a word or phrase, by any method including shortening, contraction, initialism, or crasis. An abbreviation may be a shortened form of a word, usually ended with a
Example of 15th-century Latin manuscript text with scribal abbreviations
Sign in New York City subway, reading "Penna." for Pennsylvania, showing American style of including the period (full stop) even for contractions
The full stop, period, or full point, is a punctuation mark used for several purposes, most often to mark the end of a declarative sentence.
Abbreviation
…see the following section regarding abbreviations that have become common vocabulary: these are no longer written with capital letters. A period (full stop) is sometimes used to signify abbreviation, but opinion is divided as to when and if this convention is best practice. According to Hart's Rules, a…
A point used as a thousands separator on a sign in Germany
A New Testament manuscript with high dots as full stops
An ˈarat nettib written in an Amharic inscription that commemorated Yohannes IV's call to arms