We've all encountered people who use big words just to impress folks. I think the smarter people communicate with succinct phrases that their audience immediately understands and cleverly convey specific concepts. Some of my favorite vocabulary:
I'm problem missing a ton. What are you favorites?
Why not "synergy"? Words like "Synergy" became an insanely common buzzword in the 90s. However, "synergy" is so lame because it's just a synonym for "teamwork", but doesn't really describe anything new and is no more articulate (and is even an additional syllable).