Technology / API
Application Programming Interface
Plain-language definitionA defined way for software systems to request data or actions from one another. Good APIs make capabilities predictable without exposing internal implementation.
Why it matters
Use the term to make a better decision.
In practice, application programming interface matters when a team needs to connect a technical or creative choice to a visible change in clarity, performance, discovery, or conversion. The useful question is not whether the term sounds sophisticated. It is what decision it helps the team make.