Sponsor vs syndicator vs operator

[Litan Yahav]

I've been investing in RE and PE funds / syndications for the past 7 years. But I still feel like the terminology isn't clear when it comes to the titles of people I invest with. Would love for someone to shed some light on this to help clear things up for me (and hopefully people like me)

What's the difference between a sponsor/syndicator/operator and can any or all of them be GPs in a deal?

Thanks!