anyone

Usage Note: The one-word form anyone is used to mean "any person." The two-word form any one is used to mean "whatever one (person or thing) of a group." Anyone may join means that admission is open to everybody. Any one may join means that admission is open to one person only. When followed by of, only any one can be used: Any one (not anyone) of the boys could carry it by himself. · Anyone is often used in place of everyone in sentences like She is the most thrifty person of anyone I know. In an earlier survey 64 percent of the Usage Panel found this sentence unacceptable in writing. · Anyone and anybody are singular terms and always take a singular verb. See Usage Note at they.