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Grammar, Writing & Notetaking Guide

Run-On Sentences & Comma Splices

Comma Splices

occur when two independent clauses are joined only by a comma.

Example
It was close to fall, the trees were losing their leaves.

This content is from Merriam Webster's "Comma Splices: What They Are and How to Correct Them (or not)".

Run-on Sentences

occur when two independent clauses are joined without any punctuation or connecting word between them

Example
It was close to fall the trees were losing their leaves.