KomFi. Academy

Run-on

SAT glossary · Course Foundations

Definition

Two independent clauses joined by nothing at all. Along with the comma splice it is one of the two illegal ways to run row 1 of the boundary table, which requires a period, semicolon, comma+FANBOYS, colon, or dash.

Run-on in plain English

A run-on sentence happens when two complete, independent sentences get smashed together with absolutely NOTHING connecting them at all — no comma, no conjunction, no punctuation whatsoever. Along with the comma splice (which at least has a comma), this is one of the two illegal ways to combine two independent clauses — legally joining them requires a period, a semicolon, a comma plus a FANBOYS conjunction, a colon, or a dash.

Practice Run-on

Which choice correctly joins the two ideas without a comma splice or run-on sentence?

Sign up free: all 157 SAT terms as flashcards, plus practice questions with full explanations →

Related SAT terms

SAT practice questions · SAT flashcards · SAT study guide