A run-on is when two sentences are 'combined,' or 'run together' without the necessary connecting words or punctuation (or both of these!). If two sentences are written together without any punctuation at all, this is a fused sentence.
A run-on is when two sentences are 'combined,' or 'run together' without the necessary connecting words or punctuation (or both of these!). If two sentences are written together without any punctuation at all, this is a fused sentence.