I'm trying to research keywords using Google's Keyword Tool.  After looking at results, I have the following questions: 1.  Does singular/plurals of a word count as two different keywords to Google (ie: photobooth and photobooths)?  Would I need to have a unique page targeting each word or will one page on my site be sufficient for targeting both? 2. I've noticed that different variations of keywords have the same global monthly search results.  This leads me to believe that Google see's all of them as one keyword.  ie: "photo booth props" and "props for a photo booth" and "props with photo booth", all have 22,200 search global monthly search resluts.  On the other hand "moustache prop" and "prop moustache" have different global monthly search results (480 and 590).  Can anyone explain this?