A slot is a thin opening or groove on a machine, document, or building. For example, a mail slot in a post office accepts a letter that is too big to fit through a standard door. Similarly, a plane’s slot is designated by the airport and air-traffic authority for passengers who need to land or take off at a specific time. In English, a slot is a grammatical term that applies to all slots at an airport.

SLOT is an idiom that describes an electronic gadget addict. It’s a common trait of many urban teenagers, who can’t live without their laptops and cell phones. Whether it’s a girl or a guy, this word describes a kind of person who can’t seem to live without their gadgets. If you’re looking for a cool nickname to describe yourself, consider adding a slot to your profile.

A slot is often called an expansion slot, and it refers to a hardware connector that can fit an expansion card. These cards can add new capabilities to your computer. A PC’s expansion slots are typically 16 to 64 pinholes wide, allowing you to add additional devices and software. Most desktop computers come with an expansion slot set, so you’ll always be able to add new capabilities if you need them. And if you don’t already have one, you can buy an expansion kit to add it to your computer.