The United States government agency that collects taxes and enforces the internal revenue laws.

the system for transmitting text messages on mobile phones

The process of validating a cardholder's given address against the issuer's records, to determine accuracy and deter fraud. This service is provided as part of a credit card authorization for mail order/telephone order transactions. A code is returned with the authorization result that indicates the accuracy of the address match. Abbreviated: AVS.

(computing, Internet) A service provided by the Domain Name System, allowing domain names to be resolved to IP addresses.

A postal service in which all mail is sent by airmail at the usual surface rate with no need of a special label.

(business, Australia, New Zealand) An additional employee vacation payable after long periods of service with an employer.

plural of bulletin board service

(Internet) A type of network computer attack that attempts to render a particular service (e.g. web site) unavailable to its audience.

A major division of the Department of Health and Human Services dedicated to promoting the public health of the United States.

plural of service set identifier