inland revenue inland passage • inland sea · · · Info · Definitions · Characters · · inland revenue · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) a board of the British government that administers and collects major direct taxes. Synonyms: Inland Revenue, IR. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075 v latin small letter v U+0076