irEnglish

IR, Inland Revenue, Ir, atomic number 77, iridium

Noun

A board of the British government that administers and collects major direct taxes

English: Inland Revenue, IR

A heavy brittle metallic element of the platinum group, used in alloys, occurs in natural alloys with platinum or osmium

English: iridium, Ir, atomic number 77

English words with similar meanings

Show 3 words

Words that start with "ir"