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Punctuation refers to the use of spacing, conventional signs, and typographical devices to aid in understanding written text. The term originates from the Latin word punctus, meaning "point". Punctuation marks, such as commas and periods, help clarify meaning and separate structural units within sentences.123

Historically, punctuation systems evolved from early Greek and Latin practices. Initially, points were used to separate words or indicate pauses. Over time, the focus shifted from elocutionary pauses to syntactic clarity, guiding the grammatical structure of sentences.1

In modern English, punctuation is crucial for clear communication. Essential clauses, which are vital to a sentence's meaning, are not set off by punctuation. Nonessential clauses, providing additional but not critical information, are typically set off by commas, dashes, or parentheses. A comma splice occurs when two independent clauses are joined only by a comma, which is generally considered an error in formal writing but can be used effectively in informal contexts.45

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