DICT.TW Dictionary Taiwan

 Bill, v. i. [imp. & p. p. Billed p. pr. & vb. n. Billing.]
 1. To strike; to peck. [Obs.]
 2. To join bills, as doves; to caress in fondness. “As pigeons bill.”
 To bill and coo, to interchange caresses; -- said of doves; also of demonstrative lovers.