Compatible

Compatible is an adjective describing the ability of two or more entities to exist or operate in conjunction without conflict, or to meet a standard or requirement. When people or systems are compatible, they share compatible interfaces, goals, or assumptions, allowing them to function together smoothly. The term is often used in technology to describe software, hardware, or data that can work with one another, such as a program that runs on a particular operating system or a device that uses a common communication protocol. Compatibility can be backward, forward, or bidirectional, and is frequently tested and documented.

Etymology: the word derives from Latin compatibilis, meaning fitting together, from com- 'together' and patibilis 'able to endure or be suitable'.

In technology and engineering, compatibility underpins interoperability, drivers, APIs, and compatibility layers that enable cross-platform use. Compatibility testing aims to identify conflicts between components, while backward compatibility preserves the ability to use older software or devices with newer systems. In chemistry and materials science, chemical compatibility describes the absence of adverse reactions between substances and containers, adhesives, or coatings; material compatibility is critical for durability and safety.

In social contexts, compatibility refers to how well individuals’ values, interests, and communication styles align, influencing collaboration and relationships. In logic and mathematics, a set of constraints or propositions is compatible when they can all be true together, i.e., when no contradictions arise.

Overall, compatibility is a domain-dependent measure of whether elements can be combined effectively, safely, and reliably.