- ninth
- ninth [nīnth]adj.[ME ninthe < OE nigonthe: see NINE & -TH2]1. preceded by eight others in a series; 9th2. designating any of the nine equal parts of somethingn.1. the one following the eighth2. any of the nine equal parts of something; 1/ 93. Musica) an interval in pitch of an octave and a secondb) a tone separated from another by such an intervalc) the combination of two such tonesadv.in the ninth place, rank, group, etc.ninthlyadv.
English World dictionary. V. Neufeldt. 2014.