say it: TIL-ahj
tillage is a noun meaning "arable land that is worked by plowing and sowing and raising crops". It carries 2 recorded senses.
arable land that is worked by plowing and sowing and raising crops
the cultivation of soil for raising crops
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 tillage 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.