Add a glossary

rust-lang · Oct 12, 2023 · 680f40e · 680f40e
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diff --git a/src/SUMMARY.md b/src/SUMMARY.md
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   - [🥞 Async Stack Traces](./design_docs/async_stack_traces.md)
 - [💬 Conversations](./conversations.md)
   - [🐦 2021-02-12 Twitter thread](./conversations/2021-02-12-Twitter-Thread.md)
+- [📖 Glossary](./glossary.md)
 - [❤️ Acknowledgments](./acknowledgments.md)
diff --git a/src/glossary.md b/src/glossary.md
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+# Glossary
+
+If you follow discussions in the async ecosystem you're likely to find acronyms being tossed around, many of which refer to language features that are in-progress.
+What follows is a best-effort list of those acronyms and links to resources discussing the language features.
+
+## AFIT - async fn in trait
+- [RFC #3185](https://github.com/rust-lang/rfcs/pull/3185)
+- Allows static dispatch of `async fn`s in traits
+
+## RPITIT - return position `impl trait` in traits
+- [RFC #3425](https://github.com/rust-lang/rfcs/pull/3425)
+- Allows `impl trait` as a return type in trait definitions
+
+## RTN - return type notation
+- [Tracking Issue: rust#109417](https://github.com/rust-lang/rust/issues/109417)
+- Experimental, pre-RFC feature providing bounds for return types on `async fn`s