Take a minute to review our carry-on guidelines so you know before you go, and your trip gets off to a smooth start. Please note that there are additional carry-on guidelines for United ExpressÂ® flights. Each traveler can bring on board one carry-on bag plus one personal item free of charge.
Ring-around-the-roses is, as mentioned in the OP, a nursery rhyme. It is also a common children's game, at least in the US. The exact words vary, as is true of all playground rhymes, but this is the version with which I'm most familiar.
A ring is a round band, usually in metal, worn as ornamental jewellery around the finger, or sometimes the toe; it is the most common current meaning of the word  ring .