Here are some of my thoughts on these terms:

Vote/Approval/Voting: A comment that either supports or opposes the proposition. I think we'll eventually need to codify it into a set phrase (support/aye/yes/etc), but I think this is good enough for right now.

Seconded/Thirded/Approved: Set phrases that we'll eventually have to agree upon.

User: I take it to mean Hubski user as a distinguishing term from follower of hubnomic.

Follower: Follower of hubnomic. The term is not vague, but a much bigger problem is when do we count the number of followers? At the start of the post? At the end? After a certain grace period?

Majority: I think majority means the majority of votes of a proposition, not the majority of users/followers.

Proposition: As of right now, a proposition is a rule that has yet been ratified and put forth to be considered towards ratification.

Ratify/Revert/Repeal: The process in which a proposition gets voted on and approved. I think we have to wait to see what happens in Hubnomic 2 when these propositions do get ratified, whatever that means.

Rule: As of right now, a rule is a proposition that has ratified, and a proposition is a rule that has yet been voted on. The problem is that there isn't a way of handling people who break a rule.

Ruleset: It's supposed to be a set of rules, but I'm not sure what distinguishes a ruleset from a complicated rule.

Reset: The term is currently vague because we don't know what the rules would reset to.

Transmutation: The process in which a mutable rule becomes an immutable rule and an immutable rule becomes a mutable rule. The only thing that can happen to an immutable rule is for it to be transmuted to a mutable rule.

Amendment: A change to an existing rule. It is an open question whether amendments are also proposals/propositions/rules.