The comma splice is really just a run-on sentence with a comma inserted where the conjunction or the semicolon should be. “It was a beautiful day, they wanted to go to the beach.” ...

If you use only a wimpy comma to connect the two sentences, the combination becomes what’s called a “comma splice,” also known as a “run-on sentence” or a “fused sentence.” “She is tall and thin; she ...

The comma splice is an American invention.” I’m no expert on British grammar, so I consulted M.R. Amherst Lock, the head of English at London’s Harrow School, who certainly is an authority. Mr.