It sounds like you've been looking at my web pages, HaOanhTranThanh. Jonathan's answer is correct. "Combo" is normally used as an abbreviation for "combination" which can also be called an "amalgamation" or "grouping". It's a series of steps danced consecutively, one after another, and can be as long or as short as you want, but if it gets really long, it is usually called a "routine". In the case of the combinations on my web page, some groupings were called "a long side combo" or "a short side combo". This is because in the class where I learned those combinations we were told that they could be used on the long or short sides of the dance floor. Putting a few of them together like long, short, long, short, gives you enough material to cover the entire dance floor and could be used as a routine. Some of the combinations I've been taught were longer than what's listed on my web page. Personally, I tend to think of combinations as short to medium length groupings that you can dance on any side of the floor. When a grouping seemed too long to me, I decided to split it into a few smaller groupings. That made it easier for me to remember the parts and the combinations become more flexible in that I don't feel like once I start that 10 figure combination I learned in class I have to do all 10 figures. Since I split it up, I can do maybe the first 3 figures, then do something else for floorcraft say, and finish with the last 3 figures. As I said before, Jonathan's answer was quite good, but I hope this also helps.

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James Marshall
marshall@astro.umd.edu
http://www.astro.umd.edu/~marshall