I'm very excited to male my first Wiktionary post here, adding Synonyms. I am much more familiar with Wikipedia format. I would appreciate a feedback comment on my talk page.
I believe that tier, stage, level are all related in describing a physical structure (platform) or conceptual progression (phase). It would require a lot more work for me to justify this with references. Are references required? Anon lynx 21:50, 28 September 2008 (UTC)