tol·er·ance : \ˈtä-lə-rən(t)s, ˈtäl-rən(t)s\ a:

• sympathy or indulgence for beliefs or practices differing from or conflicting with one's own b: the act of allowing something : toleration
• the allowable deviation from a standard ; especially : the range of variation permitted in maintaining a specified dimension in machining a piece