Main Page | See live article | Alphabetical index STD is an abbreviation used in several different contexts that stand for different terms. Sexually transmitted disease Subscriber toll dialling Subscriber trunk dialling Internet standard (a subset of the RFCs) ISO 4217 currency code for the São Tomé and Principe Dobra This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.