Lewis & Short

cĕlē̆brātĭo, ōnis, f. [celebro].

  1. I. A numerous assemblage, concourse: hominum coetus et celebrationes, Cic. Off. 1, 4, 12: quae domus? quae celebratio cottidiana? id. Sull. 26, 73.
  2. II. The celebrating of a festival in great numbers, a festal celebration, a festival: ludorum, Cic. Att. 15, 29, 1; cf. Tac. A. 1, 15: epuli, Vell. 2, 56, 1: sacri, Plin. 30, 1, 3, § 12.
  3. * III. An honoring, a commending, praising: celebrationem habere, to be valued, esteemed, Plin. 34, 5, 10, § 19.