Main Page | See live article | Alphabetical index A semicolon is a punctuation mark. It is used to join two sentences slightly more closely than they would be joined if separated by a full stop (or period). The semicolon is also used as a sort of "senior comma" to make meaning clear in a sentence where commass are already being used for other purposes. Examples: I am alone; my wife had to leave. I traveled to London, England; Tijuana, Mexico; and Reykjavik, Iceland. Lisa scored 2,845,770 points; Marcia, 2,312,860; and Jeff, 1,726,640. In computer programming, the semicolon corresponds to Unicode and ASCII character 59, or 0x003B. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.