ir
1. [ noun ] (British) a board of the British government that administers and collects major direct taxes
Synonyms: inland_revenue
Related terms: agency administrative_unit UK
2. [ noun ] (chemistry) a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
Synonyms: atomic_number_77 iridium
Related terms: metallic_element
Similar spelling:   ire
  ira
  Irey