say it: nahynth
ninth is a noun and adjective meaning "position nine in a countable series of things". It carries 3 recorded senses.
position nine in a countable series of things
“going into the ninth they were a run ahead”
one part in nine equal parts
coming next after the eighth and just before the tenth in position
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for ninth come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.