Start a glossary document
Suggested by both nisse and gregoiré. Terms that we use often but the meaning may not be obvious to everyone. E.g., "fail-open", "fail-close", "proof", "sigsum proof", "inclusion proof", "inclusion path".
Scope: make a best-effort attempt on what we think is useful, the most important is that we have a home for this kind of thing so that it's easy to expand it as we identify that things are missing.
Desired outcome: make it easier to communicate effectively with one another.