Why is the ( i < UniqueWords.Count ) expression valid in the for loop, but returns "CS0019 Operator '<' cannot be applied to operands of type 'int' and 'method group'" error when placed in my if? They are both string arrays, previously declared.

for (int i = 0;i<UniqueWords.Count;i++){
    	Occurrences[i] = Words.Where(x => x.Equals(UniqueWords[i])).Count();
    	Keywords[i] = UniqueWords[i];
    	if (i<UniqueURLs.Count) {rURLs[i] = UniqueURLs[i];}
}

EDITED to add declarations:

    List<string> Words = new List<string>();
    List<string> URLs = new List<string>();

//elements added like so. . . .

            Words.Add (referringWords); //these are strings
            URLs.Add (referringURL);

        UniqueWords = Words.Distinct().ToList();
        UniqueURLs = URLs.Distinct().ToList();

SOLVED. thank you, parentheses were needed for method .Count() I still do not fully understand why they are not always necessary.

Jon Skeet, thanks, I guess I don't understand what exactly the declarations are either then? You wanted the actual values assigned? They are pulled from an external source, but are strings.

I get it! Thanks. (the ()'s at least.)