The use of the semicolon can be quite difficult to understand. Here is how the correct usage of the semicolon: When you join independent clauses with an adverb, a semicolon should separate the two clauses and a comma should follow the conjunctive adverb (like in the final sentence of the previous paragraph). Ex. However, furthermore. You also can use a semicolon to join two independent sentences (clauses) that are closely related. I left the party early; I had a headache. In this example, a comma isn't enough, but a period is not good either. You can also use a semicolon to separate items in a series that already contain commas, such as in this example: Please pick up some chicken, fish and game meat; apples, oranges, bananas; and some milk.