This one is a personal pet peeve of mine. I see people use alright all the time. Technically, it is not a word. It is a misspelling of all right. Every time I see it I want to scratch it out and write it correctly.
For language geeks like me, it is with great trepidation that I learned that alright is mildly acceptable in British English along the fringes. Eeek. Thank you to Grammar Girl for enlightening me on this one. According to her site, the American Heritage Guide to Contemporary Usage and Style says it is unacceptable in one place, yet in another states that it means satisfactory. Huh? Looks like we’re in for a gradual change here in America, too… though I don’t have to like it.