addr

Addr is an abbreviated form of address used across multiple technical domains to denote a location or contact point within data structures, networks, software, and systems. As an informal label, its exact meaning depends on context and naming conventions, so clarity is important when it appears in code or documentation.

In networking and communications, an address identifies a node or endpoint. Examples include IP addresses that identify devices on an Internet Protocol network and MAC addresses that identify network interface hardware. Addresses enable routing, delivery, and access control, and they are often represented in specific notations such as dotted-decimal or hexadecimal formats.

In computing and programming, an address frequently refers to a memory location. Programs may manipulate addresses via pointers or references, and operating systems translate virtual addresses to physical memory. Address space and addressing modes are fundamental concepts in computer architecture and systems design.

In data models and forms, addr is commonly used as a field label for postal or contact information, such as street address, city, and postal code. It also appears as a shorthand in code, databases, or JSON schemas to denote an address value without committing to a particular type (postal, IP, or physical).

Because addr is not a formal standard term, its interpretation is shaped by the domain, language, and project conventions. When using addr in shared data or code, it is important to clarify the intended meaning to ensure consistent understanding.