Agent-to-Agent. Protocols for AI agents to communicate with each other autonomously — emerging as the multi-agent era becomes real in 2025. "A2A lets our planner agent hand off work to the research agent without human glue." Adjacent to MCP; specifically about peer-to-peer not client-server.
"A2A lets our planner agent hand off work to the research agent without human glue."
A2A stands for application-to-application. It is workplace tech jargon meaning two software systems are talking to each other directly without a human in the middle. If your kid uses this they probably work in IT, engineering, or AI. Not slang, not concerning. You may also see it as agent-to-agent in newer AI contexts, which means two AI assistants exchanging messages. Outside of work or school computing contexts it is rarely used.
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
Add your own interpretation of "A2A".
The vocabulary of software engineers, AI researchers, and anyone living in a terminal or on GitHub — from LLM to MCP, CORS to vibe coding, agentic to enshittification.
See all Tech, Dev & AI slang on Slangora.
Browse all slang words starting with A.
A2A stands for application-to-application. It is workplace tech jargon meaning two software systems are talking to each other directly without a human in the middle. If your kid uses this they probably work in IT, engineering, or AI. Not slang, not concerning. You may also see it as agent-to-agent in newer AI contexts, which means two AI assistants exchanging messages. Outside of work or school computing contexts it is rarely used.
A2A is a technical abbreviation used in software engineering and AI. It means application-to-application or, more recently, agent-to-agent. Use it only in technical writing, integration documents, or developer chats. The formal equivalent is "system-to-system integration" or "inter-application communication." A common mistake is treating it as general slang; native technical speakers would never use A2A in marketing copy or casual conversation. Always spell it out the first time you use it in a document.
No comments yet — say something.