1. IR

noun. a board of the British government that administers and collects major direct taxes.


  • administrative body
  • Inland Revenue

Featured Games

2. Ir

noun. a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium.


  • metallic element
  • iridium
  • metal

Sentences with ir

1. Noun, singular or mass
Note that the verbs ending in er and ir have the same endings.