Definitions for "Compound sentence"
3,4,5,6,7,8,9,10,11,12 10 A sentence with two or more coordinate independent clauses but no dependent clause (e.g., George talked and Harry listened).
a sentence containing two or more independent clauses: e.g., I saw the car wreck and I reported it. A sentence is called compound- complex if it contains a dependent clause as well as two independent ones: e.g., When the fog lifted Isaw the car wreck and I reported it.
a sentence composed of at least two coordinate independent clauses