say it: FUR-oh
furrow is a verb and noun meaning "hollow out in the form of a furrow or groove". It carries 5 recorded senses.
a slight depression or fold in the smoothness of a surface
“his face has many lines”
“ironing gets rid of most wrinkles”
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 furrow 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.