n. & a. [ L., a contr. of nihil. ] Nothing; of no account; worthless; -- a term often used for canceling, in accounts or bookkeeping. A. J. Ellis. [ 1913 Webster ]

[ See Nill, v. t. ] Will not. [ Obs. ] Chaucer. [ 1913 Webster ]

n. (computers) A special value for a variable used in certain computer languages to mean no assigned value, to be distinguished from the value zero. [ PJC ]

n. [ L. Nilus, Gr. Nei^los. ] The great river of Egypt. [ 1913 Webster ]

Nile bird. (Zool.) (a) The wryneck. [ Prov. Eng. ] (b) The crocodile bird. --
Nile goose (Zool.), the Egyptian goose. See Note under Goose, 2. [ 1913 Webster ]

n. (Zool.) see Nylghau. [ 1913 Webster ]

v. t. [ imp. & p. p. Nilled p. pr. & vb. n. Nilling. ] [ AS. nilan, nyllan; ne not + willan to will. See No, and Will. ] Not to will; to refuse; to reject. [ Obs. ] [ 1913 Webster ]

Certes, said he, I nill thine offered grace. Spenser. [ 1913 Webster ]

v. i. To be unwilling; to refuse to act. [ 1913 Webster ]

The actions of the will are “velle” and “nolle, ” to will and nill. Burton. [ 1913 Webster ]

Will he, nill he, whether he wills it or not; usually contracted to willy-nilly. [ 1913 Webster ]

n. [ Cf. Ir. & Gael. neul star, light. Cf. Nebula. ] 1. Shining sparks thrown off from melted brass. [ 1913 Webster ]

2. Scales of hot iron from the forge. Knight. [ 1913 Webster ]

n. [ Gr. &unr_;; Nei^los the Nile + &unr_; measure: cf. F. nilomètre. ] An instrument for measuring the rise of water in the Nile during its periodical flood. [ 1913 Webster ]

n. [ Gr. Nei^los; Nei^los the Nile + &unr_; to observe. ] A Nilometer. [ 1913 Webster ]