What is the meaning of attorney's fees?

^1. We refer to such fees throughout this opinion as attorney's fees, the term used in 15 U.S.C. 1117(b), rather than the less commonly used attorney fees, the term used in 15 U.S.C. 1117(a), or the likely more accurate attorneys' fees, see NAACP v. Town of E. Haven, 259 F.3d 113, 115 n. 1 (2d Cir.2001) (Although the fees sought in this case are for multiple attorneys, we refer to them in the singular possessive, attorney's fees, because that is the term used by [the statute in that case] for such awards.).