punctuation mark
Definition - A symbol that is used in writing to make it easier for readers to understand the writing.

Example -
Some examples are the period (.), the comma (,), the colon (:), and the semicolon (;).

Etymology -
The word punctuation derives from the Latin of punctuare, to mark with points or dots (from Latin punctus, a prick).

Oxford English Dictionary -
The term's first citation in this sense is from 1661:
"That there pass no mistakes of the punctuation."
(Boyle Style of Script. Pref. (1675) 13)

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