A coworker mentioned today that anything for which you may have a foreach in C# is either an IEnumerable or a subtype of IEnumerable.

An array of string or a List of string may be assigned to a variable defined as an IEnumerable of string. A Dictionary of string, string may be assigned to a similar IEnumerable variable of KeyValuePair(s) which are specifically of a string, string shape. A different coworker illuminated that skeletons are taboo in China and thus cleaned out of the Chinese versions of a lot of games, but that's less interesting. Well, not less interesting, but less important, vital.